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Fixed improved vector text representation for Postgres < 12

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This commit is contained in:
Andrew Kane
2022-12-01 15:41:12 -08:00
parent c74bb5495b
commit 37a784d3f6
1 changed files with 16 additions and 1 deletions
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17
src/vector.c
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@@ -5,7 +5,6 @@
#include "vector.h" #include "vector.h"
#include "fmgr.h" #include "fmgr.h"
#include "catalog/pg_type.h" #include "catalog/pg_type.h"
#include "common/shortest_dec.h"
#include "lib/stringinfo.h" #include "lib/stringinfo.h"
#include "libpq/pqformat.h" #include "libpq/pqformat.h"
#include "utils/array.h" #include "utils/array.h"
@@ -14,7 +13,10 @@
#include "utils/numeric.h" #include "utils/numeric.h"
#if PG_VERSION_NUM >= 120000 #if PG_VERSION_NUM >= 120000
#include "common/shortest_dec.h"
#include "utils/float.h" #include "utils/float.h"
#else
#include <float.h>
#endif #endif
#if PG_VERSION_NUM < 130000 #if PG_VERSION_NUM < 130000
@@ -195,6 +197,15 @@ vector_out(PG_FUNCTION_ARGS)
int i; int i;
int n; int n;
#if PG_VERSION_NUM < 120000
int ndig = FLT_DIG + extra_float_digits;
if (ndig < 1)
ndig = 1;
#define FLOAT_SHORTEST_DECIMAL_LEN ndig + 10
#endif
/* /*
* Need: * Need:
* *
@@ -218,7 +229,11 @@ vector_out(PG_FUNCTION_ARGS)
ptr++; ptr++;
} }
#if PG_VERSION_NUM >= 120000
n = float_to_shortest_decimal_bufn(vector->x[i], ptr); n = float_to_shortest_decimal_bufn(vector->x[i], ptr);
#else
n = sprintf(ptr, "%.*g", ndig, vector->x[i]);
#endif
ptr += n; ptr += n;
} }
*ptr = ']'; *ptr = ']';