Multi parent

src/index.rs

@@ -39,7 +39,7 @@ mod updater;
 #[cfg(test)]
 pub(crate) mod testing;
 
-const SCHEMA_VERSION: u64 = 13;
+const SCHEMA_VERSION: u64 = 14;
 
 macro_rules! define_table {
   ($name:ident, $key:ty, $value:ty) => {
@@ -57,6 +57,7 @@ macro_rules! define_multimap_table {
 define_multimap_table! { SATPOINT_TO_SEQUENCE_NUMBER, &SatPointValue, u32 }
 define_multimap_table! { SAT_TO_SEQUENCE_NUMBER, u64, u32 }
 define_multimap_table! { SEQUENCE_NUMBER_TO_CHILDREN, u32, u32 }
+define_multimap_table! { SEQUENCE_NUMBER_TO_PARENTS, u32, u32 }
 define_table! { HEIGHT_TO_BLOCK_HASH, u32, &BlockHashValue }
 define_table! { HEIGHT_TO_LAST_SEQUENCE_NUMBER, u32, u32 }
 define_table! { HOME_INSCRIPTIONS, u32, InscriptionIdValue }
@@ -287,6 +288,7 @@ impl Index {
         tx.open_multimap_table(SATPOINT_TO_SEQUENCE_NUMBER)?;
         tx.open_multimap_table(SAT_TO_SEQUENCE_NUMBER)?;
         tx.open_multimap_table(SEQUENCE_NUMBER_TO_CHILDREN)?;
+        tx.open_multimap_table(SEQUENCE_NUMBER_TO_PARENTS)?;
         tx.open_table(HEIGHT_TO_BLOCK_HASH)?;
         tx.open_table(HEIGHT_TO_LAST_SEQUENCE_NUMBER)?;
         tx.open_table(HOME_INSCRIPTIONS)?;

src/index/entry.rs

@@ -144,7 +144,6 @@ pub(crate) struct InscriptionEntry {
   pub(crate) height: u32,
   pub(crate) id: InscriptionId,
   pub(crate) inscription_number: i32,
-  pub(crate) parent: Option<u32>,
   pub(crate) sat: Option<Sat>,
   pub(crate) sequence_number: u32,
   pub(crate) timestamp: u32,

src/index/updater.rs

@@ -386,6 +386,7 @@ impl<'index> Updater<'_> {
     let mut sat_to_sequence_number = wtx.open_multimap_table(SAT_TO_SEQUENCE_NUMBER)?;
     let mut satpoint_to_sequence_number = wtx.open_multimap_table(SATPOINT_TO_SEQUENCE_NUMBER)?;
     let mut sequence_number_to_children = wtx.open_multimap_table(SEQUENCE_NUMBER_TO_CHILDREN)?;
+    let mut sequence_number_to_parents = wtx.open_multimap_table(SEQUENCE_NUMBER_TO_PARENTS)?;
     let mut sequence_number_to_inscription_entry =
       wtx.open_table(SEQUENCE_NUMBER_TO_INSCRIPTION_ENTRY)?;
     let mut sequence_number_to_satpoint = wtx.open_table(SEQUENCE_NUMBER_TO_SATPOINT)?;
@@ -438,6 +439,7 @@ impl<'index> Updater<'_> {
       satpoint_to_sequence_number: &mut satpoint_to_sequence_number,
       sequence_number_to_children: &mut sequence_number_to_children,
       sequence_number_to_entry: &mut sequence_number_to_inscription_entry,
+      sequence_number_to_parents: &mut sequence_number_to_parents,
       sequence_number_to_satpoint: &mut sequence_number_to_satpoint,
       timestamp: block.header.time,
       unbound_inscriptions,

src/index/updater/inscription_updater.rs

@@ -55,6 +55,7 @@ pub(super) struct InscriptionUpdater<'a, 'db, 'tx> {
     &'a mut MultimapTable<'db, 'tx, &'static SatPointValue, u32>,
   pub(super) sequence_number_to_children: &'a mut MultimapTable<'db, 'tx, u32, u32>,
   pub(super) sequence_number_to_entry: &'a mut Table<'db, 'tx, u32, InscriptionEntryValue>,
+  pub(super) sequence_number_to_parents: &'a mut MultimapTable<'db, 'tx, u32, u32>,
   pub(super) sequence_number_to_satpoint: &'a mut Table<'db, 'tx, u32, &'static SatPointValue>,
   pub(super) timestamp: u32,
   pub(super) unbound_inscriptions: u64,
@@ -475,14 +476,17 @@ impl<'a, 'db, 'tx> InscriptionUpdater<'a, 'db, 'tx> {
             height: self.height,
             id: inscription_id,
             inscription_number,
-            parent,
             sat,
             sequence_number,
             timestamp: self.timestamp,
           }
           .store(),
         )?;
 
+        self
+          .sequence_number_to_parents
+          .insert(sequence_number, parent)?;
+
         self
           .id_to_sequence_number
           .insert(&inscription_id.store(), sequence_number)?;