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Commitcd7cdc5

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Fix incorrect comment about nbtree WAL record.
The nbtree VACUUM WAL record stores its page offset number payload inblk 0 (just like the closely related nbtree DELETE WAL record). Commitebd551f fixed a similar issue with the DELETE WAL record, but missedthis one.
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‎src/include/access/nbtxlog.h

Lines changed: 9 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -201,7 +201,7 @@ typedef struct xl_btree_reuse_page
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* when btinsert() is called.
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*
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* The records are very similar. The only difference is that xl_btree_delete
204-
*has asnapshotConflictHorizon field to generate recovery conflicts.
204+
*havesnapshotConflictHorizon/isCatalogRel fields for recovery conflicts.
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* (VACUUM operations can just rely on earlier conflicts generated during
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* pruning of the table whose TIDs the to-be-deleted index tuples point to.
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* There are also small differences between each REDO routine that we don't go
@@ -225,9 +225,13 @@ typedef struct xl_btree_vacuum
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uint16ndeleted;
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uint16nupdated;
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228-
/* DELETED TARGET OFFSET NUMBERS FOLLOW */
229-
/* UPDATED TARGET OFFSET NUMBERS FOLLOW */
230-
/* UPDATED TUPLES METADATA (xl_btree_update) ARRAY FOLLOWS */
228+
/*----
229+
* In payload of blk 0 :
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* - DELETED TARGET OFFSET NUMBERS
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* - UPDATED TARGET OFFSET NUMBERS
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* - UPDATED TUPLES METADATA (xl_btree_update) ITEMS
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*----
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*/
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}xl_btree_vacuum;
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#defineSizeOfBtreeVacuum(offsetof(xl_btree_vacuum, nupdated) + sizeof(uint16))
@@ -244,7 +248,7 @@ typedef struct xl_btree_delete
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* In payload of blk 0 :
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* - DELETED TARGET OFFSET NUMBERS
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* - UPDATED TARGET OFFSET NUMBERS
247-
* - UPDATED TUPLES METADATA (xl_btree_update)ARRAY
251+
* - UPDATED TUPLES METADATA (xl_btree_update)ITEMS
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*----
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*/
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}xl_btree_delete;

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