builtin_function

# LogicTest: local local-opt local-parallel-stmts fakedist fakedist-metadata fakedist-opt

statement ok
CREATE TABLE foo (a int)

statement ok
INSERT INTO foo (a) VALUES (1)

query error unknown function: foo.bar
SELECT foo.bar()

query error unknown function: defaults
SELECT defaults()

query II colnames
SELECT length('roach7'), length(b'roach77')
----
length length
6      7

query IIIIII
SELECT length('Hello, 世界'), length(b'Hello, 世界'),
       char_length('Hello, 世界'), char_length(b'Hello, 世界'),
       character_length('Hello, 世界'), character_length(b'Hello, 世界')
----
9 13 9 13 9 13

statement error unknown signature: length\(int\)
SELECT length(23)

query III
SELECT octet_length('Hello'), octet_length('世界'), octet_length(b'世界')
----
5 6 6

query III
SELECT bit_length('Hello'), bit_length('世界'), bit_length(b'世界')
----
40 48 48

query TTTTTTTT
SELECT quote_ident('abc'), quote_ident('ab.c'), quote_ident('ab"c'), quote_ident('世界'),
       quote_ident('array'), -- reserved keyword
       quote_ident('family'), -- type/func name keyword
       quote_ident('bigint'), -- col name keyword
       quote_ident('alter') -- unreserved keyword
----
abc  "ab.c"  "ab""c"  世界  "array"  "family"  "bigint"  alter

query TTTT
SELECT quote_literal('abc'), quote_literal('ab''c'), quote_literal('ab"c'), quote_literal(e'ab\nc')
----
'abc'  e'ab\'c'  'ab"c'  e'ab\nc'

query TTTTTTTT
SELECT
 quote_literal(123::string), quote_nullable(123::string),
 quote_literal(123), quote_nullable(123),
 quote_literal(true), quote_nullable(true),
 quote_literal(123.3), quote_nullable(123.3)
----
'123'  '123'  '123'  '123'  'true'  'true'  '123.3'  '123.3'

query TTTTTT
SELECT
 quote_literal('1d'::interval),	quote_nullable('1d'::interval),
 quote_literal('2018-06-11 12:13:14'::timestamp), quote_nullable('2018-06-11 12:13:14'::timestamp),
 quote_literal('2018-06-11'::date), quote_nullable('2018-06-11'::date)
----
'1d'  '1d'  '2018-06-11 12:13:14+00:00'  '2018-06-11 12:13:14+00:00'  '2018-06-11'  '2018-06-11'

query TTBB
SELECT
 quote_literal(null::int), quote_nullable(null::int),
 quote_literal(null::int) IS NULL, quote_nullable(null::int) IS NULL
----
NULL  NULL  true  false

# Check that quote_literal is properly sensitive to bytea_output.

query TT
SELECT quote_literal(b'abc'), quote_nullable(b'abc')
----
e'\\x616263'  e'\\x616263'

statement ok
SET bytea_output = 'escape'

query TT
SELECT quote_literal(b'abc'), quote_nullable(b'abc')
----
'abc'  'abc'

statement ok
RESET bytea_output

query T colnames
SELECT upper('roacH7')
----
upper
ROACH7

statement error unknown signature: upper\(decimal\)
SELECT upper(2.2)

query T colnames
SELECT lower('RoacH7')
----
lower
roach7

statement error unknown signature: lower\(int\)
SELECT lower(32)

# Multiplying by zero so the result is deterministic.
query R
SELECT random() * 0.0
----
0

# Concatenating 'empty' because the empty string doesn't work in these tests.
query T
SELECT concat() || 'empty'
----
empty

query T
SELECT concat('RoacH', NULL)
----
RoacH

statement error unknown signature: concat\(string, bool, decimal, bool\)
SELECT concat('RoacH', false, 64.532, TRUE)

query T
SELECT substr('RoacH', 2, 3)
----
oac

query T
SELECT substring('RoacH', 2, 3)
----
oac

query T
SELECT substring('💩oacH', 2, 3)
----
oac

query T
SELECT substring('RoacH' from 2 for 3)
----
oac

query T
SELECT substring('RoacH' for 3 from 2)
----
oac

query T
SELECT substr('RoacH', 2)
----
oacH

query T
SELECT substr('💩oacH', 2)
----
oacH

query T
SELECT substring('RoacH' from 2)
----
oacH

query T
SELECT substr('RoacH', -2)
----
RoacH

query T
SELECT substr('RoacH', -2, 4)
----
R

query T
SELECT substr('12345', 2, 77)
----
2345

query T
SELECT substr('12345', -2, 77)
----
12345

statement error substr\(\): negative substring length -1 not allowed
SELECT substr('12345', 2, -1)

query T
SELECT substr('string', 4827075662841736053, 5123273972570225659) || 'empty'
----
empty

query T
SELECT substring('12345' for 3)
----
123

query T
SELECT substring('foobar' from 'o.b')
----
oob

query T
SELECT substring('f(oabaroob' from '\(o(.)b')
----
a

query T
SELECT substring('f(oabaroob' from '+(o(.)b' for '+')
----
a

query error substring\(\): error parsing regexp: missing closing \): `\\\\\(o\(.\)b`
SELECT substring('f(oabaroob' from '\(o(.)b' for '+')

query error unknown signature: substring\(\)
SELECT substring()

query error unknown signature: concat_ws\(\)
SELECT concat_ws()

query T
SELECT concat_ws(NULL::STRING, 'a', 'b')
----
NULL

query T
SELECT concat_ws(',', 'abcde', NULL)
----
abcde

query T
SELECT concat_ws(',', 'abcde', '2')
----
abcde,2

statement error unknown signature: concat_ws\(string, string, int, unknown, int\)
SELECT concat_ws(',', 'abcde', 2, NULL, 22)

query T
SELECT split_part('abc~@~def~@~ghi', '~@~', 2)
----
def

query T
SELECT repeat('Pg', 4)
----
PgPgPgPg

query T
SELECT repeat('Pg', -1) || 'empty'
----
empty

statement error pq: repeat\(\): .* memory budget exceeded
SELECT repeat('s', 9223372036854775807)

# Regression for #19035.
statement error pq: repeat\(\): requested length too large
SELECT repeat('1234567890'::string, 6978072892806141784::int)

query I
SELECT ascii('x')
----
120

query I
select ascii('禅')
----
31109

query error ascii\(\): the input string must not be empty
select ascii('')

query T
select chr(122)
----
z

query T
select chr(ascii('Z'))
----
Z

query T
select chr(31109)
----
禅

query error chr\(\): input value must be >= 0
SELECT chr(-1)

query T
SELECT md5('abc')
----
900150983cd24fb0d6963f7d28e17f72

query T
SELECT sha1('abc')
----
a9993e364706816aba3e25717850c26c9cd0d89d

query T
SELECT sha256('abc')
----
ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad

query IIII
SELECT fnv32('abc'), fnv32a('abc'), fnv64('abc'), fnv64a('abc')
----
1134309195  440920331  -2820157060406071861  -1792535898324117685

query II
SELECT crc32ieee('abc'), crc32c('abc')
----
891568578  910901175

# Regression tests for #29754
query T
SELECT md5(NULL::STRING)
----
NULL

query T
SELECT md5('')
----
d41d8cd98f00b204e9800998ecf8427e

query T
SELECT md5(NULL::STRING, NULL::STRING)
----
NULL

query T
SELECT sha1(NULL::STRING)
----
NULL

query T
SELECT sha256(NULL::STRING)
----
NULL

query T
SELECT sha512(NULL::STRING, NULL::STRING)
----
NULL

query T
SELECT fnv32(NULL::STRING)
----
NULL

query T
SELECT to_hex(2147483647)
----
7fffffff

query I
SELECT strpos('high', 'a')
----
0

query I
SELECT strpos('high', 'ig')
----
2

query I
SELECT strpos('💩high', 'ig')
----
3

query I
SELECT position('ig' in 'high')
----
2

query I
SELECT position('a' in 'high')
----
0

query error unknown signature: strpos\(\)
SELECT position()

query T
SELECT overlay('123456789' placing 'xxxx' from 3)
----
12xxxx789

query T
SELECT overlay('123456789' placing 'xxxx' from 3 for 2)
----
12xxxx56789

query T
SELECT overlay('123456789' placing 'xxxx' from 3 for 6)
----
12xxxx9

query T
SELECT overlay('123456789' placing 'xxxx' from 15 for 6)
----
123456789xxxx

query T
SELECT overlay('123456789' placing 'xxxx' from 3 for 10)
----
12xxxx

query T
SELECT overlay('123456789' placing 'xxxx' from 3 for -1)
----
12xxxx23456789

query T
SELECT overlay('123456789' placing 'xxxx' from 3 for -8)
----
12xxxx123456789

query T
SELECT overlay('💩123456789' placing 'xxxxÂ' from 3 for 3)
----
💩1xxxxÂ56789

query error non-positive substring length not allowed: -1
SELECT overlay('123456789' placing 'xxxx' from -1 for 6)

query T
SELECT btrim('xyxtrimyyx', 'xy')
----
trim

query T
SELECT trim('xy' from 'xyxtrimyyx')
----
trim

query T
SELECT trim(both 'xy' from 'xyxtrimyyx')
----
trim

query T
SELECT 'a' || btrim('    postgres    ') || 'b'
----
apostgresb

query T
SELECT ltrim('zzzytrimxyz', 'xyz')
----
trimxyz

query T
SELECT trim(leading 'xyz' from 'zzzytrimxyz')
----
trimxyz

query T
SELECT ltrim('   trimxyz')
----
trimxyz

query T
SELECT trim(leading '   trimxyz')
----
trimxyz

query T
SELECT trim(leading from '   trimxyz')
----
trimxyz


query T
SELECT rtrim('xyzzzzytrimxyz', 'xyz')
----
xyzzzzytrim

query T
SELECT trim(trailing 'xyz' from 'xyzzzzytrimxyz')
----
xyzzzzytrim

query T
SELECT 'a' || rtrim(' zzzytrimxyz   ')
----
a zzzytrimxyz

query T
SELECT reverse('abcde')
----
edcba

query T
SELECT reverse('世界')
----
界世

query T
SELECT replace('abcdefabcdef', 'cd', 'XX')
----
abXXefabXXef

query T
SELECT replace(initcap('hi THOMAS'), ' ', '')
----
HiThomas

query T
SELECT initcap('THOMAS')
----
Thomas

query T
SELECT left('💩abcde'::bytes, 2)
----
[240 159]

query T
SELECT right('abcde💩'::bytes, 2)
----
[146 169]

query T
SELECT left('💩abcde', 2)
----
💩a

query T
SELECT right('abcde💩', 2)
----
e💩

query RRRIIR
SELECT abs(-1.2::float), abs(1.2::float), abs(-0.0::float), abs(0), abs(1), abs(-1.2121::decimal)
----
1.2 1.2 0 0 1 1.2121

query R
SELECT abs(NULL)
----
NULL

query error abs\(\): abs of min integer value \(-9223372036854775808\) not defined
SELECT abs(-9223372036854775808)

query I
SELECT abs(-9223372036854775807)
----
9223372036854775807

query B
SELECT abs(sin(pi())) < 1e-12
----
true

subtest standard_float_digits

query RR
SELECT acos(-0.5), round(acos(0.5), 15)
----
2.0943951023932  1.0471975511966

query RR
SELECT cot(-0.5), cot(0.5)
----
-1.83048772171245  1.83048772171245

query RRR
SELECT asin(-0.5), asin(0.5), asin(1.5)
----
-0.523598775598299  0.523598775598299  NaN

query RR
SELECT atan(-0.5), atan(0.5)
----
-0.463647609000806  0.463647609000806

query RR
SELECT atan2(-10.0, 5.0), atan2(10.0, 5.0)
----
-1.10714871779409  1.10714871779409

query RRR
SELECT cbrt(-1.0::float), round(cbrt(27.0::float), 15), cbrt(19.3::decimal)
----
-1 3 2.6823725926296729544


query RRRRR
SELECT ceil(-0.5::float), ceil(0.5::float), ceiling(0.5::float), ceil(0.1::decimal), ceiling (-0.9::decimal)
----
-0  1  1  1  0

query RR
SELECT cos(-0.5), cos(0.5)
----
0.877582561890373  0.877582561890373

query RRR
SELECT sin(-1.0), sin(0.0), sin(1.0)
----
-0.841470984807897  0  0.841470984807897

query RR
SELECT degrees(-0.5), degrees(0.5)
----
-28.6478897565412  28.6478897565412

subtest extra_float_digits_3

statement ok
SET extra_float_digits = 3

query RR
SELECT acos(-0.5), round(acos(0.5), 15)
----
2.0943951023931957  1.047197551196598

query RR
SELECT cot(-0.5), cot(0.5)
----
-1.830487721712452  1.830487721712452

query RRR
SELECT asin(-0.5), asin(0.5), asin(1.5)
----
-0.5235987755982989  0.5235987755982989  NaN

query RR
SELECT atan(-0.5), atan(0.5)
----
-0.4636476090008061  0.4636476090008061

query RR
SELECT atan2(-10.0, 5.0), atan2(10.0, 5.0)
----
-1.1071487177940904  1.1071487177940904

query RRR
SELECT cbrt(-1.0::float), round(cbrt(27.0::float), 15), cbrt(19.3::decimal)
----
-1 3 2.6823725926296729544

query RRRRR
SELECT ceil(-0.5::float), ceil(0.5::float), ceiling(0.5::float), ceil(0.1::decimal), ceiling(-0.9::decimal)
----
-0  1  1  1  0

query RR
SELECT cos(-0.5), cos(0.5)
----
0.8775825618903728  0.8775825618903728

query RRR
SELECT sin(-1.0), sin(0.0), sin(1.0)
----
-0.8414709848078965  0  0.8414709848078965

query RR
SELECT degrees(-0.5), degrees(0.5)
----
-28.64788975654116  28.64788975654116

statement ok
SET extra_float_digits = 0

subtest other_tests

query IIII
SELECT div(-1::int, 2::int), div(1::int, 2::int), div(9::int, 4::int), div(-9::int, 4::int)
----
0 0 2 -2

query RRRRRR
SELECT div(-1.0::float, 2.0), div(1.0::float, 2.0), div(9.0::float, 4.0), div(-9.0::float, 4.0), div(1.0::float, 0.0), div(1111.0::decimal, 9.44)
----
-0 0 2 -2 +Inf 117

query error div\(\): division by zero
SELECT div(1.0::decimal, 0.0::decimal)

query error div\(\): division by zero
SELECT div(1::int, 0::int)

# math.Exp(1.0) returns different results on amd64 vs arm64.
# Round to make this test consistent across archs.
# See https://github.com/golang/go/issues/20319.
query RRR
SELECT exp(-1.0::float), round(exp(1.0::float), 13), exp(2.0::decimal)
----
0.367879441171442  2.718281828459  7.3890560989306502272

query error exp\(\): overflow
SELECT exp(1e2000::decimal)

query RRR
SELECT floor(-1.5::float), floor(1.5::float), floor(9.123456789::decimal)
----
-2 1 9

query BBBBBB
SELECT 1::FLOAT IS NAN, 1::FLOAT IS NOT NAN, isnan(1::FLOAT), 'NaN'::FLOAT IS NAN, 'NaN'::FLOAT IS NOT NAN, isnan('NaN'::FLOAT)
----
false true false true false true

query RRR
SELECT ln(-2.0::float), ln(2.0::float), ln(2.5::decimal)
----
NaN  0.693147180559945  0.91629073187415506518

query error cannot take logarithm of a negative number
SELECT ln(-100.000::decimal)

query error cannot take logarithm of zero
SELECT ln(0::decimal)

query RR
SELECT log(10.0::float), log(100.000::decimal)
----
1 2.0000000000000000000

query error cannot take logarithm of a negative number
SELECT log(-100.000::decimal)

query error cannot take logarithm of zero
SELECT log(0::decimal)

query RRIR
SELECT mod(5.0::float, 2.0), mod(1.0::float, 0.0), mod(5, 2), mod(19.3::decimal, 2)
----
1 NaN 1 1.3

# mod returns the same results as PostgreSQL 9.4.4
# in tests below (except for the error message).

query error mod\(\): zero modulus
SELECT mod(5, 0)

query error mod\(\): zero modulus
SELECT mod(5::decimal, 0::decimal)

query II
SELECT mod(-100, -8), mod(-100, 8)
----
-4 -4

query I
SELECT mod(-9223372036854775808, 3)
----
-2

query I
SELECT mod(-9223372036854775808, -1)
----
0

query I
SELECT mod(9223372036854775807, -1)
----
0

query I
SELECT mod(9223372036854775807, -2)
----
1

query I
SELECT mod(9223372036854775807, 1)
----
0

query I
SELECT mod(9223372036854775807, 2)
----
1

query I
SELECT mod(9223372036854775807, 4)
----
3

# div and mod are a logical pair

query R
SELECT div(9.0::float, 2.0) * 2.0 + mod(9.0::float, 2.0)
----
9

query R
SELECT div(9.0::float, -2.0) * -2.0 + mod(9.0::float, -2.0)
----
9

query R
SELECT div(-9.0::float, 2.0) * 2.0 + mod(-9.0::float, 2.0)
----
-9

query R
SELECT div(-9.0::float, -2.0) * -2.0 + mod(-9.0::float, -2.0)
----
-9

query R
SELECT pi()
----
3.14159265358979

query II
SELECT pow(-2::int, 3::int), pow(2::int, 3::int)
----
-8 8

statement error integer out of range
SELECT pow(2::int, -3::int)

query III
SELECT pow(0::int, 3::int), pow(3::int, 0::int), pow(-3::int, 0::int)
----
0 1 1

statement error integer out of range
SELECT pow(0::int, -3::int)

statement error invalid operation
SELECT pow(0::int, 0::int)

query RRR
SELECT pow(-3.0::float, 2.0), power(3.0::float, 2.0), pow(5.0::decimal, 2.0)
----
9 9 25.00

query R
SELECT pow(CAST (pi() AS DECIMAL), DECIMAL '2.0')
----
9.8696044010893571205

query R
SELECT power(0::decimal, -1)
----
Infinity

statement error invalid operation
SELECT power(-1, -.1)

query RR
SELECT radians(-45.0), radians(45.0)
----
-0.785398163397448  0.785398163397448

query error invalid operation
SELECT round(123.456::float, -2438602134409251682)

query RRR
SELECT round(4.2::float, 0), round(4.2::float, 10), round(4.22222222::decimal, 3)
----
4 4.2 4.222

query R
SELECT round(1e-308::float, 324)
----
1e-308

# round to nearest even
query RRRR
SELECT round(-2.5::float, 0), round(-1.5::float, 0), round(1.5::float, 0), round(2.5::float, 0)
----
-2 -2 2 2

query RRRRRR
SELECT round(-2.5::float), round(-1.5::float), round(-0.0::float), round(0.0::float), round(1.5::float), round(2.5::float)
----
-2 -2 -0 0 2 2

# some edge cases: denormal, 0.5-epsilon, 0.5+epsilon, 1 bit fractions, 1 bit fraction rounding to 0 bit fraction, large integer
query RRRRRRR
SELECT round(1.390671161567e-309::float), round(0.49999999999999994::float), round(0.5000000000000001::float), round(2251799813685249.5::float), round(2251799813685250.5::float), round(4503599627370495.5::float), round(4503599627370497::float)
----
0  0  1  2.25179981368525e+15  2.25179981368525e+15  4.5035996273705e+15  4.5035996273705e+15

# round up for decimals
# These results are indeed different than floats. Compare with postgres.
# Float rounding uses banker, decimal rounding uses half away from zero.
query RRRR
SELECT round(-2.5::decimal, 0), round(-1.5::decimal, 0), round(1.5::decimal, 0), round(2.5::decimal, 0)
----
-3 -2 2 3

query RRRRR
SELECT round(-2.5::decimal, 3), round(-1.5::decimal, 3), round(0.0::decimal, 3), round(1.5::decimal, 3), round(2.5::decimal, 3)
----
-2.500 -1.500 0.000 1.500 2.500

query RRRRR
SELECT round(-2.5::decimal), round(-1.5::decimal), round(0.0::decimal), round(1.5::decimal), round(2.5::decimal)
----
-3 -2 0 2 3

subtest round_max_prec

# Test rounding to 14 digits, because the logic test itself
# formats floats rounded to 15 digits behind the decimal point.

statement ok
SET extra_float_digits = 3

query RRR
SELECT round(-2.123456789, 5), round(2.123456789, 5), round(2.12345678901234567890, 14)
----
-2.12346 2.12346 2.12345678901235

query RR
SELECT round(-1.7976931348623157e+308::float, 1), round(1.7976931348623157e+308::float, 1)
----
-1.7976931348623157e+308 1.7976931348623157e+308

query RR
SELECT round(-1.7976931348623157e+308::float, -303), round(1.7976931348623157e+308::float, -303)
----
-1.79769e+308 1.79769e+308

query RR
SELECT round(-1.23456789e+308::float, -308), round(1.23456789e+308::float, -308)
----
-1e+308 1e+308

query RRRR
SELECT 1.234567890123456789::float, round(1.234567890123456789::float, 15), round(1.234567890123456789::float, 16), round(1.234567890123456789::float, 17)
----
1.2345678901234567 1.234567890123457 1.2345678901234567 1.2345678901234567

statement ok
SET extra_float_digits = 0

subtest round_low_prec

statement ok
SET extra_float_digits = -6

query RRR
SELECT round(-2.123456789, 5), round(2.123456789, 5), round(2.12345678901234567890, 14)
----
-2.12346 2.12346 2.12345678901235

query RR
SELECT round(-1.7976931348623157e+308::float, 1), round(1.7976931348623157e+308::float, 1)
----
-1.79769313e+308  1.79769313e+308

query RR
SELECT round(-1.7976931348623157e+308::float, -303), round(1.7976931348623157e+308::float, -303)
----
-1.79769e+308 1.79769e+308

query RR
SELECT round(-1.23456789e+308::float, -308), round(1.23456789e+308::float, -308)
----
-1e+308 1e+308

query RRRR
SELECT 1.234567890123456789::float, round(1.234567890123456789::float, 15), round(1.234567890123456789::float, 16), round(1.234567890123456789::float, 17)
----
1.23456789  1.23456789  1.23456789  1.23456789

statement ok
SET extra_float_digits = 0

subtest more_round_tests

query RR
SELECT round(-1.7976931348623157e-308::float, 1), round(1.7976931348623157e-308::float, 1)
----
-0 0


query RRR
SELECT round(123.456::float, -1), round(123.456::float, -2), round(123.456::float, -3)
----
120 100 0

query RRRR
SELECT round(123.456::decimal, -1), round(123.456::decimal, -2), round(123.456::decimal, -3), round(123.456::decimal, -200)
----
1.2E+2  1E+2  0E+3  0E+200

query RRRR
SELECT round('nan'::decimal), round('nan'::decimal, 1), round('nan'::float), round('nan'::float, 1)
----
NaN NaN NaN NaN

# Match postgres float round for inf.
query RRRR
SELECT round('inf'::float), round('inf'::float, 1), round('-inf'::float), round('-inf'::float, 1)
----
+Inf  +Inf  -Inf  -Inf

# But decimal round (which isn't supported at all in postgres because
# postgres doesn't support NaN or Inf for its decimals) conforms to
# the GDA spec.
query error invalid operation
SELECT round('inf'::decimal)

query error invalid operation
SELECT round(1::decimal, 3000)

subtest more_tests


query III
SELECT sign(-2), sign(0), sign(2)
----
-1 0 1

query RRRR
SELECT sign(-2.0), sign(-0.0), sign(0.0), sign(2.0)
----
-1 0 0 1

query RR
SELECT sqrt(4.0::float), sqrt(9.0::decimal)
----
2 3

query error cannot take square root of a negative number
SELECT sqrt(-1.0::float)

query error cannot take square root of a negative number
SELECT sqrt(-1.0::decimal)

query RRR
SELECT round(tan(-5.0), 14), tan(0.0), round(tan(5.0), 14)
----
3.38051500624659 0 -3.38051500624659

query RRRR
SELECT trunc(-0.0), trunc(0.0), trunc(1.9), trunc(19.5678::decimal)
----
0 0 1 19

query T
SELECT translate('Techonthenet.com', 'e.to', '456')
----
T4chn6h4n465cm

query T
SELECT translate('12345', '143', 'ax')
----
a2x5

query T
SELECT translate('12345', 'abc', 'ax')
----
12345

query T
SELECT translate('a‰ÒÁ', 'aÒ', '∏p')
----
∏‰pÁ

query T
SELECT regexp_extract('foobar', 'o.b')
----
oob

query T
SELECT regexp_extract('foobar', 'o(.)b')
----
o

query T
SELECT regexp_extract('foobar', '(o(.)b)')
----
oob

query T
SELECT regexp_extract('foabaroob', 'o(.)b')
----
a

query T
SELECT regexp_extract('foobar', 'o.x')
----
NULL

query T
SELECT regexp_replace('foobarbaz', 'b..', 'X')
----
fooXbaz

query T
SELECT regexp_replace('foobarbaz', 'b..', 'X', 'g')
----
fooXX

query T
SELECT regexp_replace('foobarbaz', 'b(..)', E'X\\1Y', 'g')
----
fooXarYXazY

query T
SELECT regexp_replace('foobarbaz', 'b(.)(.)', E'X\\2\\1\\3Y', 'g')
----
fooXraYXzaY

query T
SELECT regexp_replace(E'fooBa\nrbaz', 'b(..)', E'X\\&Y', 'gi')
----
fooXBa
YrXbazY

query T
SELECT regexp_replace(E'fooBa\nrbaz', 'b(..)', E'X\\&Y', 'gmi')
----
fooBa
rXbazY

query T
SELECT regexp_replace(E'fooBar\nbaz', 'b(..)$', E'X\\&Y', 'gpi')
----
fooBar
XbazY

query T
SELECT regexp_replace(E'fooBar\nbaz', 'b(..)$', E'X\\&Y', 'gwi')
----
fooXBarY
XbazY

query T
SELECT regexp_replace('foobarbaz', 'nope', 'NO')
----
foobarbaz

query error regexp_replace\(\): invalid regexp flag: 'z'
SELECT regexp_replace(E'fooBar\nbaz', 'b(..)$', E'X\\&Y', 'z')

query T
SELECT regexp_replace(E'Foo\nFoo', '^(foo)', 'BAR', 'i')
----
BAR
Foo

query T
SELECT regexp_replace(e'DOGGIE\ndog \nDOG', '^d.+', 'CAT', 's')
----
DOGGIE
dog
DOG

query T
SELECT regexp_replace(e'DOGGIE\ndog \nDOG', '^d.+', 'CAT', 'n');
----
DOGGIE
CAT
DOG

query T
SELECT regexp_replace(e'DOGGIE\ndog \nDOG', '^D.+', 'CAT', 'p')
----
CAT
dog
DOG

query T
SELECT regexp_replace(e'DOGGIE\ndog \nDOG', '^d.+', 'CAT', 'w')
----
DOGGIE
CAT

query T
SELECT regexp_replace('abc', 'b', e'\n', 'w')
----
a
c

query T
SELECT regexp_replace('abc\', 'b', 'a', 'w')
----
aac\

query T
SELECT regexp_replace('abc', 'c', 'a\', 'w')
----
aba\

# #19046
query T
SELECT regexp_replace('ReRe','R(e)','1\\1','g');
----
1\11\1

query B
SELECT unique_rowid() < unique_rowid()
----
true

query BI
SELECT uuid_v4() != uuid_v4(), length(uuid_v4())
----
true 16

query error syntax error at or near.*
SELECT greatest()

query error syntax error at or near.*
SELECT least()

query I
SELECT greatest(4, 5, 7, 1, 2)
----
7

query I
SELECT least(4, 5, 7, 1, 2)
----
1

query I
SELECT greatest(4, NULL, 7, 1, 2)
----
7

query I
SELECT greatest(NULL, NULL, 7, NULL, 2)
----
7

query I
SELECT greatest(NULL, NULL, NULL, NULL, 2)
----
2

query I
SELECT greatest(2, NULL, NULL, NULL, NULL)
----
2

query I
SELECT least(4, NULL, 7, 1, 2)
----
1

query I
SELECT greatest(NULL, NULL, NULL)
----
NULL

query I
SELECT least(NULL, NULL, NULL)
----
NULL

query I
SELECT greatest(2, '4')
----
4

query I
SELECT least(2, '4')
----
2

query T
SELECT greatest('foo', 'bar', 'foobar')
----
foobar

query T
SELECT least('foo', 'bar', 'foobar')
----
bar

query R
SELECT greatest(1, 1.2)
----
1.2

# Test homogenous functions that can't be constant folded.
query I
SELECT greatest(NULL, a, 5, NULL) FROM foo
----
5

query I
SELECT greatest(NULL, NULL, NULL, a, -1) FROM foo
----
1

query I
SELECT least(NULL, a, 5, NULL) FROM foo
----
1

query I
SELECT least(NULL, NULL, NULL, a, -1) FROM foo
----
-1

# Test float and int comparison.

query BBBB
select 1 = 1.0::float, 1.0::float = 1, 1 = 2.0::float, 2.0::float = 1
----
true true false false

query BBBB
select 1 < 2.0::float, 1.0::float < 2, 2.0::float < 1, 2 < 1.0::float
----
true true false false

query BBBB
select 1 <= 1.0::float, 1.0::float <= 1, 2.0::float <= 1, 2 <= 1.0::float
----
true true false false

query BBBB
select 2 > 1.0::float, 2.0::float > 1, 1 > 2.0::float, 1.0::float > 2
----
true true false false

query BBBB
select 1 >= 1.0::float, 1.0::float >= 1, 1.0::float >= 2, 1 >= 2.0::float
----
true true false false

# Test decimal and int comparison.

query BBBB
select 1 = 1.0::decimal, 1.0::decimal = 1, 1 = 2.0::decimal, 2.0::decimal = 1
----
true true false false

query BBBB
select 1 < 2.0::decimal, 1.0::decimal < 2, 2.0::decimal < 1, 2 < 1.0::decimal
----
true true false false

query BBBB
select 1 <= 1.0::decimal, 1.0::decimal <= 1, 2.0::decimal <= 1, 2 <= 1.0::decimal
----
true true false false

query BBBB
select 2 > 1.0::decimal, 2.0::decimal > 1, 1 > 2.0::decimal, 1.0::decimal > 2
----
true true false false

query BBBB
select 1 >= 1.0::decimal, 1.0::decimal >= 1, 1.0::decimal >= 2, 1 >= 2.0::decimal
----
true true false false

# Test float and decimal comparison.

query BBBB
select 1::decimal = 1.0, 1.0 = 1::decimal, 1::decimal = 2.0, 2.0 = 1::decimal
----
true true false false

query BBBB
select 1::decimal < 2.0, 1.0 < 2::decimal, 2.0 < 1::decimal, 2::decimal < 1.0
----
true true false false

query BBBB
select 1::decimal <= 1.0, 1.0 <= 1::decimal, 2.0 <= 1::decimal, 2::decimal <= 1.0
----
true true false false

query BBBB
select 2::decimal > 1.0, 2.0 > 1::decimal, 1::decimal > 2.0, 1.0 > 2::decimal
----
true true false false

query BBBB
select 1::decimal >= 1.0, 1.0 >= 1::decimal, 1.0 >= 2::decimal, 1::decimal >= 2.0
----
true true false false

query I
SELECT strpos(version(), 'CockroachDB')
----
1

# Don't panic during incorrect use of * (#7727)
query error pq: cos\(\): cannot use "\*" in this context
SELECT cos(*) FROM system.namespace

# Don't panic with invalid names (#8045)
query error cannot use "nonexistent.\*" without a FROM clause
SELECT TRIM(TRAILING nonexistent.*[1])

query error rtrim\(\): cannot subscript type tuple
SELECT TRIM(TRAILING foo.*[1]) FROM (VALUES (1)) AS foo(x)

# Don't panic with invalid names (#8044)
query error cannot use "nonexistent.\*" without a FROM clause
SELECT OVERLAY(nonexistent.* PLACING 'string' FROM 'string')

query error unknown signature
SELECT OVERLAY(foo.* PLACING 'string' FROM 'string') FROM (VALUES (1)) AS foo(x)

# Don't panic with invalid names (#8023)
query error cannot use "nonexistent.\*" without a FROM clause
SELECT nonexistent.* IS NOT TRUE

query error unsupported comparison operator: <tuple{int AS x}> IS DISTINCT FROM <bool>
SELECT foo.* IS NOT TRUE FROM (VALUES (1)) AS foo(x)

query T
SELECT current_schemas(true)
----
{"pg_catalog","public"}

query T
SELECT current_schemas(false)
----
{"public"}

# Force the function to be evaluated at execution time and verify it doesn't
# break when distsql is on.
query T
SELECT current_schemas(x) FROM (VALUES (true), (false)) AS t(x);
----
{"pg_catalog","public"}
{"public"}

statement ok
SET search_path=test,pg_catalog

query T
SELECT current_schemas(true)
----
{"pg_catalog"}

query T
SELECT current_schemas(false)
----
{"pg_catalog"}

statement ok
RESET search_path

query error pq: unknown signature: current_schemas()
SELECT current_schemas()

query T
SELECT current_schemas(NULL::bool)
----
NULL

query B
SELECT 'public' = ANY (current_schemas(true))
----
true

query B
SELECT 'not test' = ANY (current_schemas(true))
----
false

query B
SELECT pg_catalog.pg_table_is_visible('foo'::regclass)
----
true

statement ok
SET search_path = pg_catalog

query B
SELECT pg_catalog.pg_table_is_visible((SELECT oid FROM pg_class WHERE relname='foo'))
----
false

statement ok
SET SEARCH_PATH = public, pg_catalog

query B
SELECT pg_catalog.pg_table_is_visible((SELECT oid FROM pg_class WHERE relname='foo'))
----
true

statement ok
RESET search_path

query T
SELECT current_schema()
----
public

query I
SELECT array_length(ARRAY['a', 'b'], 1)
----
2

query I
SELECT array_length(ARRAY['a'], 1)
----
1

query I
SELECT array_length(ARRAY['a'], 0)
----
NULL

query I
SELECT array_length(ARRAY['a'], 2)
----
NULL

query I
SELECT array_lower(ARRAY['a', 'b'], 1)
----
1

query I
SELECT array_lower(ARRAY['a'], 1)
----
1

query I
SELECT array_lower(ARRAY['a'], 0)
----
NULL

query I
SELECT array_lower(ARRAY['a'], 2)
----
NULL

query I
SELECT array_upper(ARRAY['a', 'b'], 1)
----
2

query I
SELECT array_upper(ARRAY['a'], 1)
----
1

query I
SELECT array_upper(ARRAY['a'], 0)
----
NULL

query I
SELECT array_upper(ARRAY['a'], 2)
----
NULL

query I
SELECT array_length(ARRAY[]:::int[], 1)
----
NULL

query I
SELECT array_lower(ARRAY[]:::int[], 1)
----
NULL

query I
SELECT array_upper(ARRAY[]:::int[], 1)
----
NULL

query I
SELECT array_length(ARRAY[ARRAY[1, 2]], 2)
----
2

query I
SELECT array_lower(ARRAY[ARRAY[1, 2]], 2)
----
1

query I
SELECT array_upper(ARRAY[ARRAY[1, 2]], 2)
----
2

query T
SELECT encode('\xa7', 'hex')
----
a7

query TT
SELECT encode('abc', 'hex'), decode('616263', 'hex')
----
616263 abc

query T
SELECT encode(e'123\000456', 'escape')
----
123\000456

query T
SELECT decode('123\000456', 'escape')::STRING
----
\x31323300343536

query TT
SELECT encode('abc', 'base64'), decode('YWJj', 'base64')
----
YWJj abc

query T
SELECT decode('padded==', 'base64')::STRING
----
\xa5a75d79

query T
SELECT decode('padded1=', 'base64')::STRING
----
\xa5a75d79dd

query error illegal base64 data at input byte 4
SELECT decode('invalid', 'base64')

query error only 'hex', 'escape', and 'base64' formats are supported for encode\(\)
SELECT encode('abc', 'fake')

query error only 'hex', 'escape', and 'base64' formats are supported for decode\(\)
SELECT decode('abc', 'fake')

query T
SELECT from_ip(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\x01\x02\x03\x04')
----
1.2.3.4

query T
SELECT from_ip(to_ip('1.2.3.4'))
----
1.2.3.4

# net.IP.String() always gives us the most succinct form of ipv6
query T
select from_ip(to_ip('2001:0db8:85a3:0000:0000:8a2e:0370:7334'))
----
2001:db8:85a3::8a2e:370:7334

query error pq: unknown signature: to_ip()
SELECT to_ip()

query error pq: from_ip\(\): zero length IP
SELECT from_ip(b'')

query error pq: to_ip\(\): invalid IP format: ''
SELECT to_ip('')

query error pq: to_ip\(\): invalid IP format: 'asdf'
select to_ip('asdf')

query R
select ln(4.0786335175292462e+34::decimal)
----
79.693655171940461633

query IB
SELECT length(gen_random_uuid()::BYTES), gen_random_uuid() = gen_random_uuid()
----
16 false

query TTTTTT
SELECT to_uuid('63616665-6630-3064-6465-616462656566'),
       to_uuid('{63616665-6630-3064-6465-616462656566}'),
       to_uuid('urn:uuid:63616665-6630-3064-6465-616462656566'),
       from_uuid(b'cafef00ddeadbeef'),
       to_uuid(from_uuid(b'cafef00ddeadbeef')),
       from_uuid(to_uuid('63616665-6630-3064-6465-616462656566'))
----
cafef00ddeadbeef
cafef00ddeadbeef
cafef00ddeadbeef
63616665-6630-3064-6465-616462656566
cafef00ddeadbeef
63616665-6630-3064-6465-616462656566

query error uuid: incorrect UUID length
SELECT to_uuid('63616665-6630-3064-6465')

query error uuid: incorrect UUID length
SELECT to_uuid('63616665-6630-3064-6465-616462656566-123')

query error uuid: incorrect UUID format
SELECT to_uuid('6361666512-6630-3064-6465-616462656566')

query error uuid: UUID must be exactly 16 bytes long, got 4 bytes
SELECT from_uuid(b'f00d')

query T
SELECT pg_catalog.pg_typeof(sign(1:::decimal))
----
decimal

query T
VALUES (pg_typeof(1:::int)),
       (pg_typeof('a':::string)),
       (pg_typeof(true)),
       (pg_typeof(NULL)),
       (pg_typeof('3m':::interval)),
       (pg_typeof('2016-11-12':::date)),
       (pg_typeof(now():::timestamptz)),
       (pg_typeof(b'a':::bytes)),
       (pg_typeof(array[1,2,3]))
----
int
string
bool
unknown
interval
date
timestamptz
bytes
int[]

query T
VALUES (format_type('anyelement'::regtype, -1)),
       (format_type('bool'::regtype, -1)),
       (format_type('bytea'::regtype, -1)),
       (format_type('date'::regtype, -1)),
       (format_type('numeric'::regtype, -1)),
       (format_type('interval'::regtype, -1)),
       (format_type('timestamp'::regtype, -1)),
       (format_type('timestamptz'::regtype, -1)),
       (format_type('record'::regtype, -1))
----
anyelement
boolean
bytea
date
numeric
interval
timestamp without time zone
timestamp with time zone
record

query T
VALUES (format_type('anyelement'::regtype, NULL)),
       (format_type('bool'::regtype, NULL)),
       (format_type('bytea'::regtype, NULL)),
       (format_type('date'::regtype, NULL)),
       (format_type('numeric'::regtype, NULL)),
       (format_type('interval'::regtype, NULL)),
       (format_type('timestamp'::regtype, NULL)),
       (format_type('timestamptz'::regtype, NULL)),
       (format_type('record'::regtype, NULL))
----
anyelement
boolean
bytea
date
numeric
interval
timestamp without time zone
timestamp with time zone
record

query T
SELECT format_type(oid, -1) FROM pg_type WHERE typname='text' LIMIT 1
----
text

query T
SELECT format_type(oid, -1) FROM pg_type WHERE typname='int8' LIMIT 1
----
bigint

query T
SELECT format_type(oid, -1) FROM pg_type WHERE typname='float8' LIMIT 1
----
double precision

query T
SELECT format_type(oid, -1) FROM pg_type WHERE typname='_int8' LIMIT 1
----
bigint[]

query T
SELECT format_type(oid, -1) FROM pg_type WHERE typname='_text' LIMIT 1
----
text[]

query T
SELECT pg_catalog.pg_get_userbyid((SELECT oid FROM pg_roles WHERE rolname='root'))
----
root

query T
SELECT pg_catalog.pg_get_userbyid(20)
----
unknown (OID=20)

query T
SELECT pg_catalog.pg_get_indexdef(0)
----
NULL

statement ok
CREATE TABLE test.pg_indexdef_test (a INT, UNIQUE INDEX pg_indexdef_idx (a ASC), INDEX other (a DESC))

query T
SELECT pg_catalog.pg_get_indexdef((SELECT oid from pg_class WHERE relname='pg_indexdef_idx'))
----
CREATE UNIQUE INDEX pg_indexdef_idx ON test.public.pg_indexdef_test (a ASC)

query T
SELECT pg_catalog.pg_get_indexdef(0, 0, true)
----
NULL

query T
SELECT pg_catalog.pg_get_indexdef((SELECT oid from pg_class WHERE relname='pg_indexdef_idx'), 0, true)
----
CREATE UNIQUE INDEX pg_indexdef_idx ON test.public.pg_indexdef_test (a ASC)

statement ok
CREATE TABLE test.pg_indexdef_test_cols (a INT, b INT, UNIQUE INDEX pg_indexdef_cols_idx (a ASC, b DESC), INDEX other (a DESC))

query T
SELECT pg_catalog.pg_get_indexdef((SELECT oid from pg_class WHERE relname='pg_indexdef_cols_idx'), 0, true)
----
CREATE UNIQUE INDEX pg_indexdef_cols_idx ON test.public.pg_indexdef_test_cols (a ASC, b DESC)

query T
SELECT pg_catalog.pg_get_indexdef((SELECT oid from pg_class WHERE relname='pg_indexdef_cols_idx'), 1, true)
----
a

query T
SELECT pg_catalog.pg_get_indexdef((SELECT oid from pg_class WHERE relname='pg_indexdef_cols_idx'), 2, false)
----
b

query T
SELECT pg_catalog.pg_get_indexdef((SELECT oid from pg_class WHERE relname='pg_indexdef_cols_idx'), 3, false)
----
rowid

query I
SELECT length(pg_catalog.pg_get_indexdef((SELECT oid from pg_class WHERE relname='pg_indexdef_cols_idx'), 4, false))
----
0

query I
SELECT length(pg_catalog.pg_get_indexdef((SELECT oid from pg_class WHERE relname='pg_indexdef_cols_idx'), -1, false))
----
0

query T
SELECT pg_catalog.pg_get_viewdef(0)
----
NULL

statement ok
CREATE TABLE test.pg_viewdef_test (a int, b int, c int)

statement ok
CREATE VIEW test.pg_viewdef_view AS SELECT a, b FROM test.pg_viewdef_test

query T
SELECT pg_catalog.pg_get_viewdef('pg_viewdef_view'::regclass::oid)
----
SELECT a, b FROM test.public.pg_viewdef_test

query T
SELECT pg_catalog.pg_get_viewdef(0, true)
----
NULL

query T
SELECT pg_catalog.pg_get_viewdef(0, false)
----
NULL

query T
SELECT pg_catalog.pg_get_viewdef('pg_viewdef_view'::regclass::oid, true)
----
SELECT a, b FROM test.public.pg_viewdef_test

query T
SELECT pg_catalog.pg_get_viewdef('pg_viewdef_view'::regclass::oid, false)
----
SELECT a, b FROM test.public.pg_viewdef_test

statement ok
CREATE TABLE test.pg_constraintdef_test (
  a int,
  b int unique,
  c int check (c > a),
  FOREIGN KEY(a) REFERENCES test.pg_indexdef_test(a) ON DELETE CASCADE
)

query T rowsort
SELECT pg_catalog.pg_get_constraintdef(oid)
FROM pg_catalog.pg_constraint
WHERE conrelid='pg_constraintdef_test'::regclass
----
FOREIGN KEY (a) REFERENCES pg_indexdef_test (a) ON DELETE CASCADE
CHECK (c > a)
UNIQUE (b ASC)

# These functions always return NULL since we don't support comments.
query TTTT
SELECT col_description('pg_class'::regclass::oid, 2),
       obj_description('pg_class'::regclass::oid, 'pg_class'),
       obj_description('pg_class'::regclass::oid),
       shobj_description('pg_class'::regclass::oid, 'pg_class')
----
NULL  NULL  NULL  NULL

# Check that base function names are also visible in namespace pg_catalog.
query I
SELECT pg_catalog.length('hello')
----
5

query OOO
SELECT oid(3), oid(0), oid(12023948723)
----
3  0  12023948723

query T
SELECT to_english(i) FROM (VALUES (1), (13), (617), (-2)) AS a(i)
----
one
one-three
six-one-seven
minus-two

# Do some basic sanity checking of the variadic hash functions.
query BBBBBBBBB
SELECT
  sha512('1') = sha512('1'),
  sha512('1') = sha512('2'),
  sha512('1', '2') = sha512('1', '2'),
  sha512('1', '2') = sha512('2', '1'),
  sha512('1', '2') = sha512('12'),
  sha512('1', '2') = sha512('21'),
  sha512('bar') = sha512(b'bar':::bytes),
  sha512(b'bar'::bytes) = sha512(b'bar':::bytes),
  sha512(b'bar'::bytes) = sha512('bar')
----
true false true false true false true true true

# The hash functions should be stable, so verify that the following hashes
# don't change.
query T
SELECT i FROM (VALUES
  (sha512(true::string)),
  (sha512(false::string)),
  (sha512(1::int::string)),
  (sha512(1.1::float::string)),
  (sha512('foo'::string)),
  (sha512('3m'::interval::string)),
  (sha512('2016-11-12'::date::string)),
  (sha512('2015-08-24 23:45:45.53453'::timestamptz::string)),
  (sha512(b'bar'::bytes))
) AS a(i)
----
9120cd5faef07a08e971ff024a3fcbea1e3a6b44142a6d82ca28c6c42e4f852595bcf53d81d776f10541045abdb7c37950629415d0dc66c8d86c64a5606d32de
719fa67eef49c4b2a2b83f0c62bddd88c106aaadb7e21ae057c8802b700e36f81fe3f144812d8b05d66dc663d908b25645e153262cf6d457aa34e684af9e328d
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
be09b235155bae6cb96b94ce4645260937e856ac3907d710850256e6351f50b428f948a7af33937445604f41cf3a3121b2dd069a057708ed1f047e133e09151e
f7fbba6e0636f890e56fbbf3283e524c6fa3204ae298382d624741d0dc6638326e282c41be5e4254d8820772c5518a2c5a8c0c7f7eda19594a7eb539453e1ed7
6ca65db2a861fa0ecd0c1e29ef9566425e952d2a205706a6e955a6b1bbd721fdc2d28efdba515f9d29f34aa84223382f6ca6d11bdef23984b8ff9339b59e80f5
b2d173023893f71caadf7cb2f9557355462570de2c9c971b9cfa5494936e28df8e13d0db4d550aab66d5e7a002f678ddb02def092c069ce473cf5fb293953986
960b0fed9378be1e9adefd91e1be6ac9c1de7208008dfec438ff845135727bebea0f7458a5181079f61288176e0168cfea501b900c3e495b3ab9bbe4d372486d
d82c4eb5261cb9c8aa9855edd67d1bd10482f41529858d925094d173fa662aa91ff39bc5b188615273484021dfb16fd8284cf684ccf0fc795be3aa2fc1e6c181

# We only support one encoding, UTF8, which is hardcoded to id 6 just like in
# Postgres.
query TT
SELECT pg_catalog.pg_encoding_to_char(6), pg_catalog.pg_encoding_to_char(7)
----
UTF8  NULL

# TODO(SQL execution team): Restore this to original form by removing FROM
# clause once issue 32422 is fixed.
query TITI
SELECT pg_catalog.inet_client_addr(), pg_catalog.inet_client_port(), pg_catalog.inet_server_addr(), pg_catalog.inet_server_port()
FROM pg_class
WHERE relname = 'pg_constraint'
----
::/0  0  ::/0  0

query TTTT
SELECT quote_ident('foo'), quote_ident('select'), quote_ident('int8'), quote_ident('numeric')
----
foo  "select"  int8  "numeric"


query TT
SELECT lpad('abc', 5, 'xy'), rpad('abc', 5, 'xy')
----
xyabc  abcxy

query TT
SELECT lpad('abc', 5, ''), rpad('abc', 5, '')
----
abc  abc

query error memory budget exceeded
SELECT lpad('abc', 100000000000000)

query error memory budget exceeded
SELECT rpad('abc', 100000000000000)

query TT
SELECT array_to_string(ARRAY['a', 'b,', NULL, 'c'], ','), array_to_string(ARRAY['a', 'b,', NULL, 'c'], ',', NULL)
----
a,b,,c  a,b,,c

query TT
SELECT array_to_string(ARRAY['a', 'b,', 'c'], NULL), array_to_string(ARRAY['a', 'b,', NULL, 'c'], 'foo', 'zerp')
----
NULL  afoob,foozerpfooc

query TT
SELECT array_to_string(NULL, ','), array_to_string(NULL, 'foo', 'zerp')
----
NULL  NULL

subtest pg_is_in_recovery

query B colnames
SELECT pg_is_in_recovery()
----
pg_is_in_recovery
false

subtest pg_is_xlog_replay_paused

query B colnames
SELECT pg_is_xlog_replay_paused()
----
pg_is_xlog_replay_paused
false

query T
SELECT pg_catalog.pg_client_encoding()
----
UTF8

# Ensure that privileged builtins work from DistSQL.
statement ok
SELECT crdb_internal.set_vmodule('foo=2') FROM foo