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Allow to omit boundaries in array subscript

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Allow to omiy lower or upper or both boundaries in array subscript
for selecting slice of array.

Author: YUriy Zhuravlev
This commit is contained in:
Teodor Sigaev
2015-12-18 15:18:58 +03:00
parent 33bd250f6c
commit 9246af6799
12 changed files with 184 additions and 28 deletions
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2
src/backend/nodes/copyfuncs.c
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@ -2403,6 +2403,8 @@ _copyAIndices(const A_Indices *from)
COPY_NODE_FIELD(lidx);
COPY_NODE_FIELD(uidx);
COPY_SCALAR_FIELD(lidx_default);
COPY_SCALAR_FIELD(uidx_default);
return newnode;
}

2
src/backend/nodes/equalfuncs.c
View File

@ -2153,6 +2153,8 @@ _equalAIndices(const A_Indices *a, const A_Indices *b)
{
COMPARE_NODE_FIELD(lidx);
COMPARE_NODE_FIELD(uidx);
COMPARE_SCALAR_FIELD(lidx_default);
COMPARE_SCALAR_FIELD(uidx_default);
return true;
}

2
src/backend/nodes/outfuncs.c
View File

@ -2765,6 +2765,8 @@ _outA_Indices(StringInfo str, const A_Indices *node)
WRITE_NODE_FIELD(lidx);
WRITE_NODE_FIELD(uidx);
WRITE_BOOL_FIELD(lidx_default);
WRITE_BOOL_FIELD(uidx_default);
}
static void