Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commit259489b

Browse files
author
Thomas G. Lockhart
committed
Implement LIKE/ESCAPE. Change parser to use like()/notlike()
 rather than the "~~" operator; this made it easy to add ESCAPE features.Implement ILIKE, NOT ILIKE, and the ESCAPE clause for them. afaict this is not MultiByte clean, but lots of other stuff isn't either.Fix up underlying support code for LIKE/NOT LIKE. Things should be faster and does not require internal string copying.Update regression test to add explicit checks for LIKE/NOT LIKE/ILIKE/NOT ILIKE.Remove colon and semi-colon operators as threatened in 7.0.Implement SQL99 COMMIT/AND NO CHAIN. Throw elog(ERROR) on COMMIT/AND CHAIN per spec since we don't yet support it.Implement SQL99 CREATE/DROP SCHEMA as equivalent to CREATE DATABASE. This is only a stopgap or demo since schemas will have another implementation soon.Remove a few unused production rules to get rid of warnings which crept in on the last commit.Fix up tabbing in some places by removing embedded spaces.
1 parent30ab107 commit259489b

File tree

1 file changed

+101
-8
lines changed

1 file changed

+101
-8
lines changed

‎src/test/regress/sql/strings.sql

Lines changed: 101 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -41,21 +41,114 @@ SELECT CAST(name 'namefield' AS varchar) AS "varchar(name)";
4141
-- test SQL92 string functions
4242
--
4343

44-
SELECTTRIM(BOTHFROM' bunch o blanks')AS"bunch o blanks";
44+
SELECTTRIM(BOTHFROM' bunch o blanks')='bunch o blanks'AS"bunch o blanks";
4545

46-
SELECTTRIM(LEADINGFROM' bunch o blanks')AS"bunch o blanks";
46+
SELECTTRIM(LEADINGFROM' bunch o blanks')='bunch o blanks'AS"bunch o blanks";
4747

48-
SELECTTRIM(TRAILINGFROM' bunch o blanks')AS" bunch o blanks";
48+
SELECTTRIM(TRAILINGFROM' bunch o blanks')=' bunch o blanks'AS" bunch o blanks";
4949

50-
SELECTTRIM(BOTH'x'FROM'xxxxxsome Xsxxxxx')AS"some Xs";
50+
SELECTTRIM(BOTH'x'FROM'xxxxxsome Xsxxxxx')='some Xs'AS"some Xs";
5151

52-
SELECTSUBSTRING('1234567890'FROM3)AS"34567890";
52+
SELECTSUBSTRING('1234567890'FROM3)='34567890'AS"34567890";
5353

54-
SELECTSUBSTRING('1234567890'FROM4 FOR3)AS"456";
54+
SELECTSUBSTRING('1234567890'FROM4 FOR3)='456'AS"456";
5555

56-
SELECT POSITION('4'IN'1234567890')AS"4";
56+
SELECT POSITION('4'IN'1234567890')='4'AS"4";
5757

58-
SELECT POSITION(5IN'1234567890')AS"5";
58+
SELECT POSITION(5IN'1234567890')='5'AS"5";
59+
60+
--
61+
-- test LIKE
62+
-- Be sure to form every test as a LIKE/NOT LIKE pair.
63+
--
64+
65+
-- simplest examples
66+
SELECT'hawkeye'LIKE'h%'AS"true";
67+
SELECT'hawkeye' NOTLIKE'h%'AS"false";
68+
69+
SELECT'hawkeye'LIKE'H%'AS"false";
70+
SELECT'hawkeye' NOTLIKE'H%'AS"true";
71+
72+
SELECT'hawkeye'LIKE'indio%'AS"false";
73+
SELECT'hawkeye' NOTLIKE'indio%'AS"true";
74+
75+
SELECT'hawkeye'LIKE'h%eye'AS"true";
76+
SELECT'hawkeye' NOTLIKE'h%eye'AS"false";
77+
78+
SELECT'indio'LIKE'_ndio'AS"true";
79+
SELECT'indio' NOTLIKE'_ndio'AS"false";
80+
81+
SELECT'indio'LIKE'in__o'AS"true";
82+
SELECT'indio' NOTLIKE'in__o'AS"false";
83+
84+
SELECT'indio'LIKE'in_o'AS"false";
85+
SELECT'indio' NOTLIKE'in_o'AS"true";
86+
87+
-- unused escape character
88+
SELECT'hawkeye'LIKE'h%' ESCAPE'#'AS"true";
89+
SELECT'hawkeye' NOTLIKE'h%' ESCAPE'#'AS"false";
90+
91+
SELECT'indio'LIKE'ind_o' ESCAPE'$'AS"true";
92+
SELECT'indio' NOTLIKE'ind_o' ESCAPE'$'AS"false";
93+
94+
-- escape character
95+
SELECT'h%'LIKE'h#%' ESCAPE'#'AS"true";
96+
SELECT'h%' NOTLIKE'h#%' ESCAPE'#'AS"false";
97+
98+
SELECT'h%wkeye'LIKE'h#%' ESCAPE'#'AS"false";
99+
SELECT'h%wkeye' NOTLIKE'h#%' ESCAPE'#'AS"true";
100+
101+
SELECT'h%wkeye'LIKE'h#%%' ESCAPE'#'AS"true";
102+
SELECT'h%wkeye' NOTLIKE'h#%%' ESCAPE'#'AS"false";
103+
104+
SELECT'h%awkeye'LIKE'h#%a%k%e' ESCAPE'#'AS"true";
105+
SELECT'h%awkeye' NOTLIKE'h#%a%k%e' ESCAPE'#'AS"false";
106+
107+
SELECT'indio'LIKE'_ndio' ESCAPE'$'AS"true";
108+
SELECT'indio' NOTLIKE'_ndio' ESCAPE'$'AS"false";
109+
110+
SELECT'i_dio'LIKE'i$_d_o' ESCAPE'$'AS"true";
111+
SELECT'i_dio' NOTLIKE'i$_d_o' ESCAPE'$'AS"false";
112+
113+
SELECT'i_dio'LIKE'i$_nd_o' ESCAPE'$'AS"false";
114+
SELECT'i_dio' NOTLIKE'i$_nd_o' ESCAPE'$'AS"true";
115+
116+
SELECT'i_dio'LIKE'i$_d%o' ESCAPE'$'AS"true";
117+
SELECT'i_dio' NOTLIKE'i$_d%o' ESCAPE'$'AS"false";
118+
119+
-- escape character same as pattern character
120+
SELECT'maca'LIKE'm%aca' ESCAPE'%'AS"true";
121+
SELECT'maca' NOTLIKE'm%aca' ESCAPE'%'AS"false";
122+
123+
SELECT'ma%a'LIKE'm%a%%a' ESCAPE'%'AS"true";
124+
SELECT'ma%a' NOTLIKE'm%a%%a' ESCAPE'%'AS"false";
125+
126+
SELECT'bear'LIKE'b_ear' ESCAPE'_'AS"true";
127+
SELECT'bear' NOTLIKE'b_ear' ESCAPE'_'AS"false";
128+
129+
SELECT'be_r'LIKE'b_e__r' ESCAPE'_'AS"true";
130+
SELECT'be_r' NOTLIKE'b_e__r' ESCAPE'_'AS"false";
131+
132+
SELECT'be_r'LIKE'__e__r' ESCAPE'_'AS"false";
133+
SELECT'be_r' NOTLIKE'__e__r' ESCAPE'_'AS"true";
134+
135+
136+
--
137+
-- test ILIKE (case-insensitive LIKE)
138+
-- Be sure to form every test as an ILIKE/NOT ILIKE pair.
139+
--
140+
141+
SELECT'hawkeye' ILIKE'h%'AS"true";
142+
SELECT'hawkeye' NOT ILIKE'h%'AS"false";
143+
144+
SELECT'hawkeye' ILIKE'H%'AS"true";
145+
SELECT'hawkeye' NOT ILIKE'H%'AS"false";
146+
147+
SELECT'hawkeye' ILIKE'H%Eye'AS"true";
148+
SELECT'hawkeye' NOT ILIKE'H%Eye'AS"false";
149+
150+
SELECT'Hawkeye' ILIKE'h%'AS"true";
151+
SELECT'Hawkeye' NOT ILIKE'h%'AS"false";
59152

60153
--
61154
-- test implicit type conversion

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp