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Fix comments in index.c

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This comment paragraph referred to text_eq(), but the name of the
function in charge of "text" comparisons is called texteq().

Author: Jian He <jian.universality@gmail.com>
Discussion: https://postgr.es/m/CACJufxHL--XNcCCO1LgKsygzYGiVHZMfTcAxOSG8+ezxWtjddw@mail.gmail.com
This commit is contained in:
Michael Paquier
2025-07-15 16:05:59 +09:00
parent 88a658a42e
commit 006fc975a2
1 changed files with 4 additions and 4 deletions
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8
src/backend/catalog/index.c
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@@ -800,11 +800,11 @@ index_create(Relation heapRelation,
errmsg("user-defined indexes on system catalog tables are not supported"))); errmsg("user-defined indexes on system catalog tables are not supported")));
/* /*
* Btree text_pattern_ops uses text_eq as the equality operator, which is * Btree text_pattern_ops uses texteq as the equality operator, which is
* fine as long as the collation is deterministic; text_eq then reduces to * fine as long as the collation is deterministic; texteq then reduces to
* bitwise equality and so it is semantically compatible with the other * bitwise equality and so it is semantically compatible with the other
* operators and functions in that opclass. But with a nondeterministic * operators and functions in that opclass. But with a nondeterministic
* collation, text_eq could yield results that are incompatible with the * collation, texteq could yield results that are incompatible with the
* actual behavior of the index (which is determined by the opclass's * actual behavior of the index (which is determined by the opclass's
* comparison function). We prevent such problems by refusing creation of * comparison function). We prevent such problems by refusing creation of
* an index with that opclass and a nondeterministic collation. * an index with that opclass and a nondeterministic collation.
@@ -814,7 +814,7 @@ index_create(Relation heapRelation,
* opclasses as incompatible with nondeterminism; but for now, this small * opclasses as incompatible with nondeterminism; but for now, this small
* hack suffices. * hack suffices.
* *
* Another solution is to use a special operator, not text_eq, as the * Another solution is to use a special operator, not texteq, as the
* equality opclass member; but that is undesirable because it would * equality opclass member; but that is undesirable because it would
* prevent index usage in many queries that work fine today. * prevent index usage in many queries that work fine today.
*/ */