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.

1 files changed, 21 insertions, 21 deletions

diff --git a/contrib/btree_gist/uninstall_btree_gist.sql b/contrib/btree_gist/uninstall_btree_gist.sql
index aee0edd4026..9e71819e1aa 100644
--- a/contrib/btree_gist/uninstall_btree_gist.sql
+++ b/contrib/btree_gist/uninstall_btree_gist.sql
@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/contrib/btree_gist/uninstall_btree_gist.sql,v 1.4 2007/11/13 04:24:27 momjian Exp $ */
+/* $PostgreSQL: pgsql/contrib/btree_gist/uninstall_btree_gist.sql,v 1.5 2008/04/14 17:05:32 tgl Exp $ */
 
 -- Adjust this setting to control where the objects get dropped.
 SET search_path = public;
@@ -17,7 +17,7 @@ DROP FUNCTION gbt_inet_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_inet_compress(internal);
 
-DROP FUNCTION gbt_inet_consistent(internal,inet,int2);
+DROP FUNCTION gbt_inet_consistent(internal,inet,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_vbit_ops USING gist;
 
@@ -33,7 +33,7 @@ DROP FUNCTION gbt_bit_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_bit_compress(internal);
 
-DROP FUNCTION gbt_bit_consistent(internal,bit,int2);
+DROP FUNCTION gbt_bit_consistent(internal,bit,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_numeric_ops USING gist;
 
@@ -47,7 +47,7 @@ DROP FUNCTION gbt_numeric_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_numeric_compress(internal);
 
-DROP FUNCTION gbt_numeric_consistent(internal,numeric,int2);
+DROP FUNCTION gbt_numeric_consistent(internal,numeric,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_bytea_ops USING gist;
 
@@ -61,7 +61,7 @@ DROP FUNCTION gbt_bytea_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_bytea_compress(internal);
 
-DROP FUNCTION gbt_bytea_consistent(internal,bytea,int2);
+DROP FUNCTION gbt_bytea_consistent(internal,bytea,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_bpchar_ops USING gist;
 
@@ -79,9 +79,9 @@ DROP FUNCTION gbt_bpchar_compress(internal);
 
 DROP FUNCTION gbt_text_compress(internal);
 
-DROP FUNCTION gbt_bpchar_consistent(internal,bpchar,int2);
+DROP FUNCTION gbt_bpchar_consistent(internal,bpchar,int2,oid,internal);
 
-DROP FUNCTION gbt_text_consistent(internal,text,int2);
+DROP FUNCTION gbt_text_consistent(internal,text,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_macaddr_ops USING gist;
 
@@ -95,7 +95,7 @@ DROP FUNCTION gbt_macad_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_macad_compress(internal);
 
-DROP FUNCTION gbt_macad_consistent(internal,macaddr,int2);
+DROP FUNCTION gbt_macad_consistent(internal,macaddr,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_cash_ops USING gist;
 
@@ -109,7 +109,7 @@ DROP FUNCTION gbt_cash_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_cash_compress(internal);
 
-DROP FUNCTION gbt_cash_consistent(internal,money,int2);
+DROP FUNCTION gbt_cash_consistent(internal,money,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_interval_ops USING gist;
 
@@ -125,7 +125,7 @@ DROP FUNCTION gbt_intv_decompress(internal);
 
 DROP FUNCTION gbt_intv_compress(internal);
 
-DROP FUNCTION gbt_intv_consistent(internal,interval,int2);
+DROP FUNCTION gbt_intv_consistent(internal,interval,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_date_ops USING gist;
 
@@ -139,7 +139,7 @@ DROP FUNCTION gbt_date_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_date_compress(internal);
 
-DROP FUNCTION gbt_date_consistent(internal,date,int2);
+DROP FUNCTION gbt_date_consistent(internal,date,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_timetz_ops USING gist;
 
@@ -157,9 +157,9 @@ DROP FUNCTION gbt_timetz_compress(internal);
 
 DROP FUNCTION gbt_time_compress(internal);
 
-DROP FUNCTION gbt_timetz_consistent(internal,timetz,int2);
+DROP FUNCTION gbt_timetz_consistent(internal,timetz,int2,oid,internal);
 
-DROP FUNCTION gbt_time_consistent(internal,time,int2);
+DROP FUNCTION gbt_time_consistent(internal,time,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_timestamptz_ops USING gist;
 
@@ -177,9 +177,9 @@ DROP FUNCTION gbt_tstz_compress(internal);
 
 DROP FUNCTION gbt_ts_compress(internal);
       
-DROP FUNCTION gbt_tstz_consistent(internal,timestamptz,int2);
+DROP FUNCTION gbt_tstz_consistent(internal,timestamptz,int2,oid,internal);
 
-DROP FUNCTION gbt_ts_consistent(internal,timestamp,int2);
+DROP FUNCTION gbt_ts_consistent(internal,timestamp,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_float8_ops USING gist;
 
@@ -193,7 +193,7 @@ DROP FUNCTION gbt_float8_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_float8_compress(internal);
 
-DROP FUNCTION gbt_float8_consistent(internal,float8,int2);
+DROP FUNCTION gbt_float8_consistent(internal,float8,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_float4_ops USING gist;
 
@@ -207,7 +207,7 @@ DROP FUNCTION gbt_float4_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_float4_compress(internal);
 
-DROP FUNCTION gbt_float4_consistent(internal,float4,int2);
+DROP FUNCTION gbt_float4_consistent(internal,float4,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_int8_ops USING gist;
 
@@ -221,7 +221,7 @@ DROP FUNCTION gbt_int8_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_int8_compress(internal);
 
-DROP FUNCTION gbt_int8_consistent(internal,int8,int2);
+DROP FUNCTION gbt_int8_consistent(internal,int8,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_int4_ops USING gist;
 
@@ -235,7 +235,7 @@ DROP FUNCTION gbt_int4_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_int4_compress(internal);
 
-DROP FUNCTION gbt_int4_consistent(internal,int4,int2);
+DROP FUNCTION gbt_int4_consistent(internal,int4,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_int2_ops USING gist;
 
@@ -249,7 +249,7 @@ DROP FUNCTION gbt_int2_penalty(internal,internal,internal);
 
 DROP FUNCTION gbt_int2_compress(internal);
 
-DROP FUNCTION gbt_int2_consistent(internal,int2,int2);
+DROP FUNCTION gbt_int2_consistent(internal,int2,int2,oid,internal);
 
 DROP OPERATOR CLASS gist_oid_ops USING gist;
 
@@ -267,7 +267,7 @@ DROP FUNCTION gbt_decompress(internal);
 
 DROP FUNCTION gbt_oid_compress(internal);
 
-DROP FUNCTION gbt_oid_consistent(internal,oid,int2);
+DROP FUNCTION gbt_oid_consistent(internal,oid,int2,oid,internal);
 
 DROP TYPE gbtreekey_var CASCADE;