diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2008-04-14 17:05:34 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2008-04-14 17:05:34 +0000 |
| commit | 9b5c8d45f62bd3d243a40cc84deb93893f2f5122 (patch) | |
| tree | 2d75607f7bdb96cfa1d73a3a36a4b3328118ff08 /src/backend/parser | |
| parent | 10be77c173211a75718f50fe6061862f6a0cb4a2 (diff) | |
| download | postgresql-9b5c8d45f62bd3d243a40cc84deb93893f2f5122.tar.gz postgresql-9b5c8d45f62bd3d243a40cc84deb93893f2f5122.zip | |
Push index operator lossiness determination down to GIST/GIN opclass
"consistent" functions, and remove pg_amop.opreqcheck, as per recent
discussion. The main immediate benefit of this is that we no longer need
8.3's ugly hack of requiring @@@ rather than @@ to test weight-using tsquery
searches on GIN indexes. In future it should be possible to optimize some
other queries better than is done now, by detecting at runtime whether the
index match is exact or not.
Tom Lane, after an idea of Heikki's, and with some help from Teodor.
Diffstat (limited to 'src/backend/parser')
| -rw-r--r-- | src/backend/parser/gram.y | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y index 21fff239c70..e17842231d9 100644 --- a/src/backend/parser/gram.y +++ b/src/backend/parser/gram.y @@ -11,7 +11,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.611 2008/03/28 00:21:55 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.612 2008/04/14 17:05:33 tgl Exp $ * * HISTORY * AUTHOR DATE MAJOR EVENT @@ -3107,7 +3107,6 @@ opclass_item: n->name = $3; n->args = NIL; n->number = $2; - n->recheck = $4; $$ = (Node *) n; } | OPERATOR Iconst any_operator '(' oper_argtypes ')' opt_recheck @@ -3117,7 +3116,6 @@ opclass_item: n->name = $3; n->args = $5; n->number = $2; - n->recheck = $7; $$ = (Node *) n; } | FUNCTION Iconst func_name func_args @@ -3156,7 +3154,14 @@ opt_opfamily: FAMILY any_name { $$ = $2; } | /*EMPTY*/ { $$ = NIL; } ; -opt_recheck: RECHECK { $$ = TRUE; } +opt_recheck: RECHECK + { + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("RECHECK is no longer supported"), + errhint("Update your data type."))); + $$ = TRUE; + } | /*EMPTY*/ { $$ = FALSE; } ; |