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Add prefix operator for TEXT type.

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The prefix operator along with SP-GiST indexes can be used as an alternative
for LIKE 'word%' commands  and it doesn't have a limitation of string/prefix
length as B-Tree has.

Bump catalog version

Author: Ildus Kurbangaliev with some editorization by me
Review by: Arthur Zakirov, Alexander Korotkov, and me
Discussion: https://www.postgresql.org/message-id/flat/20180202180327.222b04b3@wp.localdomain
This commit is contained in:
Teodor Sigaev
2018-04-03 19:46:45 +03:00
parent 4ab2999815
commit 710d90da1f
14 changed files with 189 additions and 9 deletions
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7
src/include/utils/selfuncs.h
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@@ -87,8 +87,11 @@ typedef struct VariableStatData
typedef enum
{
Pattern_Type_Like, Pattern_Type_Like_IC,
Pattern_Type_Regex, Pattern_Type_Regex_IC
Pattern_Type_Like,
Pattern_Type_Like_IC,
Pattern_Type_Regex,
Pattern_Type_Regex_IC,
Pattern_Type_Prefix
} Pattern_Type;
typedef enum