New version. Add support for int2, int8, float4, float8, timestamp with/without time zone, time with/without time zone, date, interval, oid, money and macaddr, char, varchar/text, bytea, numeric, bit, varbit, inet/cidr types for GiST

1 files changed, 191 insertions, 0 deletions

diff --git a/contrib/btree_gist/btree_date.c b/contrib/btree_gist/btree_date.c
new file mode 100644
index 00000000000..be7d6d9324f
--- /dev/null
+++ b/contrib/btree_gist/btree_date.c
@@ -0,0 +1,191 @@
+#include "btree_gist.h"
+#include "btree_utils_num.h"
+#include "utils/date.h"
+
+typedef struct
+{
+   DateADT    lower;
+   DateADT    upper;
+}  dateKEY;
+
+/*
+** date ops
+*/
+PG_FUNCTION_INFO_V1(gbt_date_compress);
+PG_FUNCTION_INFO_V1(gbt_date_union);
+PG_FUNCTION_INFO_V1(gbt_date_picksplit);
+PG_FUNCTION_INFO_V1(gbt_date_consistent);
+PG_FUNCTION_INFO_V1(gbt_date_penalty);
+PG_FUNCTION_INFO_V1(gbt_date_same);
+
+Datum    gbt_date_compress(PG_FUNCTION_ARGS);
+Datum    gbt_date_union(PG_FUNCTION_ARGS);
+Datum    gbt_date_picksplit(PG_FUNCTION_ARGS);
+Datum    gbt_date_consistent(PG_FUNCTION_ARGS);
+Datum    gbt_date_penalty(PG_FUNCTION_ARGS);
+Datum    gbt_date_same(PG_FUNCTION_ARGS);
+
+static bool     gbt_dategt     (const void *a, const void *b)
+{
+  return DatumGetBool( 
+     DirectFunctionCall2(date_gt,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
+  );
+}
+
+static bool     gbt_datege     (const void *a, const void *b)
+{
+  return DatumGetBool( 
+     DirectFunctionCall2(date_ge,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
+  );
+}
+
+static bool     gbt_dateeq     (const void *a, const void *b)
+{
+  return DatumGetBool( 
+     DirectFunctionCall2(date_eq,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
+  );
+}
+
+static bool     gbt_datele     (const void *a, const void *b)
+{
+  return DatumGetBool( 
+     DirectFunctionCall2(date_le,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
+  );
+}
+
+static bool     gbt_datelt     (const void *a, const void *b)
+{
+  return DatumGetBool( 
+     DirectFunctionCall2(date_lt,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
+  );
+}
+
+
+
+static int
+gbt_datekey_cmp(const void *a, const void *b)
+{
+  if ( gbt_dategt( (void*)&(((Nsrt *) a)->t[0]) , (void*)&(((Nsrt *) b)->t[0]) ) ){
+    return  1;
+  } else
+  if ( gbt_datelt( (void*)&(((Nsrt *) a)->t[0]) , (void*)&(((Nsrt *) b)->t[0]) ) ){
+    return -1;
+  }
+  return  0;
+}
+
+
+static const gbtree_ninfo tinfo = 
+{
+  gbt_t_date,
+  sizeof(DateADT),
+  gbt_dategt,
+  gbt_datege,
+  gbt_dateeq,
+  gbt_datele,
+  gbt_datelt,
+  gbt_datekey_cmp
+};
+
+
+/**************************************************
+ * date ops
+ **************************************************/
+
+
+
+Datum
+gbt_date_compress(PG_FUNCTION_ARGS)
+{
+    GISTENTRY  *entry  = (GISTENTRY *) PG_GETARG_POINTER(0);
+    GISTENTRY  *retval = NULL;
+    PG_RETURN_POINTER( gbt_num_compress( retval , entry , &tinfo ));
+}
+
+
+
+Datum
+gbt_date_consistent(PG_FUNCTION_ARGS)
+{
+    GISTENTRY        *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
+    DateADT          query  = PG_GETARG_DATEADT( 1 );
+    dateKEY            *kkk = (dateKEY *) DatumGetPointer(entry->key);
+    GBT_NUMKEY_R        key ;
+    StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
+    key.lower = (GBT_NUMKEY*) &kkk->lower ;
+    key.upper = (GBT_NUMKEY*) &kkk->upper ;
+
+    PG_RETURN_BOOL(
+      gbt_num_consistent( &key, (void*)&query,&strategy,GIST_LEAF(entry),&tinfo)
+    );
+}
+
+
+Datum
+gbt_date_union(PG_FUNCTION_ARGS)
+{
+    GistEntryVector     *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
+    void                     *out = palloc(sizeof(dateKEY));
+    *(int *) PG_GETARG_POINTER(1) = sizeof(dateKEY);
+    PG_RETURN_POINTER( gbt_num_union ( (void*)out, entryvec, &tinfo ) );
+}
+
+
+Datum
+gbt_date_penalty(PG_FUNCTION_ARGS)
+{
+        dateKEY      *origentry = (dateKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
+        dateKEY      *newentry  = (dateKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
+        float           *result = (float *)   PG_GETARG_POINTER(2);
+        int32         diff, res ;
+
+        diff = DatumGetInt32(DirectFunctionCall2(
+                  date_mi,
+                  DateADTGetDatum(newentry->upper),
+                  DateADTGetDatum(origentry->upper)));
+
+        res  = Max(diff, 0);
+
+        diff = DatumGetInt32(DirectFunctionCall2(
+                  date_mi,
+                  DateADTGetDatum(origentry->lower),
+                  DateADTGetDatum(newentry->lower)));
+
+        res += Max(diff, 0);
+
+        *result = 0.0;
+
+        if ( res > 0 ){
+          diff = DatumGetInt32(DirectFunctionCall2(
+                  date_mi,
+                  DateADTGetDatum(origentry->upper),
+                  DateADTGetDatum(origentry->lower)));
+          *result += FLT_MIN ;
+          *result += (float) ( res / ( (double) ( res + diff ) ) );
+          *result *= ( FLT_MAX / ( ( (GISTENTRY *) PG_GETARG_POINTER(0))->rel->rd_att->natts + 1 ) );
+        }
+
+        PG_RETURN_POINTER(result);
+}
+
+
+Datum
+gbt_date_picksplit(PG_FUNCTION_ARGS)
+{
+  PG_RETURN_POINTER(gbt_num_picksplit(
+      (GistEntryVector *) PG_GETARG_POINTER(0),
+      (GIST_SPLITVEC *) PG_GETARG_POINTER(1),
+      &tinfo
+  ));
+}
+
+Datum
+gbt_date_same(PG_FUNCTION_ARGS)
+{
+  dateKEY      *b1 = (dateKEY *) PG_GETARG_POINTER(0);
+  dateKEY      *b2 = (dateKEY *) PG_GETARG_POINTER(1);
+  bool     *result = (bool *) PG_GETARG_POINTER(2);
+
+  *result  = gbt_num_same ( (void*)b1, (void*)b2, &tinfo );
+  PG_RETURN_POINTER(result);
+}