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[docs] Reverted PR 23909 changes #23941

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Sep 16, 2024
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[docs] Reverted PR 23909 changes #23941

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4 changes: 2 additions & 2 deletions docs/content/preview/explore/ysql-language-features/postgresql-compatibility.md
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Expand Up @@ -135,12 +135,12 @@ Enables the use of PostgreSQL [parallel queries](https://www.postgresql.org/docs

To enable EPCM in YugabyteDB:

- Pass the `enable_pg_parity_early_access` flag to [yugabyted](../../../reference/configuration/yugabyted/) when starting your cluster.
- Pass the `enable_pg_parity_tech_preview` flag to [yugabyted](../../../reference/configuration/yugabyted/) when starting your cluster.

For example, from your YugabyteDB home directory, run the following command:

```sh
./bin/yugabyted start --enable_pg_parity_early_access
./bin/yugabyted start --enable_pg_parity_tech_preview
```

Note: When enabling the cost models, ensure that packed row for colocated tables is enabled by setting the `--ysql_enable_packed_row_for_colocated_table` flag to true.
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2 changes: 1 addition & 1 deletion docs/content/preview/reference/configuration/yugabyted.md
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Expand Up @@ -751,7 +751,7 @@ For on-premises deployments, consider racks as zones to treat them as fault doma
: Enable or disable the backup daemon with yugabyted start. Default: `false`
: If you start a cluster using the `--backup_daemon` flag, you also need to download and extract the [YB Controller release](https://downloads.yugabyte.com/ybc/2.1.0.0-b9/ybc-2.1.0.0-b9-linux-x86_64.tar.gz) to the yugabyte-{{< yb-version version="preview" >}} release directory.

--enable_pg_parity_early_access *PostgreSQL-compatibilty*
--enable_pg_parity_tech_preview *PostgreSQL-compatibilty*
: Enable Enhanced PostgreSQL Compatibility Mode. Default: `false`

#### Advanced flags
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4 changes: 2 additions & 2 deletions docs/content/preview/releases/ybdb-releases/v2.21.md
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Expand Up @@ -350,12 +350,12 @@ Converted the `ysql_skip_row_lock_for_update` to an auto-flag to resolve compati

We're pleased to announce the tech preview of the new Enhanced Postgres Compatibility Mode in the 2.21.0.0 release. This mode enables you to take advantage of many new improvements in both PostgreSQL compatibility and performance parity, making it even easier to lift and shift your applications from PostgreSQL to YugabyteDB. When this mode is turned on, YugabyteDB uses the [Read-Committed](../../../architecture/transactions/read-committed/) isolation mode, the [Wait-on-Conflict](../../../architecture/transactions/concurrency-control/#wait-on-conflict) concurrency mode for predictable P99 latencies, and the new Cost Based Optimizer that takes advantage of the distributed storage layer architecture and includes query pushdowns, LSM indexes, and [batched nested loop joins](../../../explore/ysql-language-features/join-strategies/#batched-nested-loop-join-bnl) to offer PostgreSQL-like performance.

You can enable the compatibility mode by passing the `enable_pg_parity_early_access` flag to [yugabyted](../../../reference/configuration/yugabyted/#yugabyted), when bringing up your cluster.
You can enable the compatibility mode by passing the `enable_pg_parity_tech_preview` flag to [yugabyted](../../../reference/configuration/yugabyted/#yugabyted), when bringing up your cluster.

For example, from your YugabyteDB home directory, run the following command:

```sh
./bin/yugabyted start --enable_pg_parity_early_access
./bin/yugabyted start --enable_pg_parity_tech_preview
```

Note: When enabling the cost models, ensure that packed row for colocated tables is enabled by setting the `--ysql_enable_packed_row_for_colocated_table` flag to true.
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