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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2011-07-06 14:53:16 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2011-07-06 14:53:16 -0400 |
| commit | 14f67192c25a130a354f3e3e6db3dfd49d2f5c86 (patch) | |
| tree | eca994c83e70ffa64b085f6ca316e0056ffb23aa /src/include/utils/lsyscache.h | |
| parent | c7f23494c1103f87bcf1ef7cbfcd626e73edb337 (diff) | |
| download | postgresql-14f67192c25a130a354f3e3e6db3dfd49d2f5c86.tar.gz postgresql-14f67192c25a130a354f3e3e6db3dfd49d2f5c86.zip | |
Remove assumptions that not-equals operators cannot be in any opclass.
get_op_btree_interpretation assumed this in order to save some duplication
of code, but it's not true in general anymore because we added <> support
to btree_gist. (We still assume it for btree opclasses, though.)
Also, essentially the same logic was baked into predtest.c. Get rid of
that duplication by generalizing get_op_btree_interpretation so that it
can be used by predtest.c.
Per bug report from Denis de Bernardy and investigation by Jeff Davis,
though I didn't use Jeff's patch exactly as-is.
Back-patch to 9.1; we do not support this usage before that.
Diffstat (limited to 'src/include/utils/lsyscache.h')
| -rw-r--r-- | src/include/utils/lsyscache.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/include/utils/lsyscache.h b/src/include/utils/lsyscache.h index 0a419dcf65b..f4490adc318 100644 --- a/src/include/utils/lsyscache.h +++ b/src/include/utils/lsyscache.h @@ -17,6 +17,15 @@ #include "access/htup.h" #include "nodes/pg_list.h" +/* Result list element for get_op_btree_interpretation */ +typedef struct OpBtreeInterpretation +{ + Oid opfamily_id; /* btree opfamily containing operator */ + int strategy; /* its strategy number */ + Oid oplefttype; /* declared left input datatype */ + Oid oprighttype; /* declared right input datatype */ +} OpBtreeInterpretation; + /* I/O function selector for get_type_io_data */ typedef enum IOFuncSelector { @@ -50,8 +59,7 @@ extern bool get_compatible_hash_operators(Oid opno, Oid *lhs_opno, Oid *rhs_opno); extern bool get_op_hash_functions(Oid opno, RegProcedure *lhs_procno, RegProcedure *rhs_procno); -extern void get_op_btree_interpretation(Oid opno, - List **opfamilies, List **opstrats); +extern List *get_op_btree_interpretation(Oid opno); extern bool equality_ops_are_compatible(Oid opno1, Oid opno2); extern Oid get_opfamily_proc(Oid opfamily, Oid lefttype, Oid righttype, int16 procnum); |