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c06d6aa4c3
Many older tests where written in a style like
SELECT '' AS two, i.* FROM INT2_TBL
where the first column indicated the number of expected result rows.
This has gotten increasingly out of date, as the test data fixtures
have expanded, so a lot of these were wrong and misleading. Moreover,
this style isn't really necessary, since the psql output already shows
the number of result rows.
To clean this up, remove all those extra columns.
Discussion: https://www.postgresql.org/message-id/flat/1a25312b-2686-380d-3c67-7a69094a999f%40enterprisedb.com
76 lines
1.3 KiB
SQL
76 lines
1.3 KiB
SQL
--
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-- CHAR
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--
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-- fixed-length by value
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-- internally passed by value if <= 4 bytes in storage
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SELECT char 'c' = char 'c' AS true;
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--
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-- Build a table for testing
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--
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CREATE TABLE CHAR_TBL(f1 char);
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INSERT INTO CHAR_TBL (f1) VALUES ('a');
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INSERT INTO CHAR_TBL (f1) VALUES ('A');
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-- any of the following three input formats are acceptable
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INSERT INTO CHAR_TBL (f1) VALUES ('1');
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INSERT INTO CHAR_TBL (f1) VALUES (2);
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INSERT INTO CHAR_TBL (f1) VALUES ('3');
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-- zero-length char
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INSERT INTO CHAR_TBL (f1) VALUES ('');
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-- try char's of greater than 1 length
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INSERT INTO CHAR_TBL (f1) VALUES ('cd');
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INSERT INTO CHAR_TBL (f1) VALUES ('c ');
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SELECT * FROM CHAR_TBL;
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SELECT c.*
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FROM CHAR_TBL c
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WHERE c.f1 <> 'a';
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SELECT c.*
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FROM CHAR_TBL c
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WHERE c.f1 = 'a';
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SELECT c.*
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FROM CHAR_TBL c
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WHERE c.f1 < 'a';
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SELECT c.*
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FROM CHAR_TBL c
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WHERE c.f1 <= 'a';
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SELECT c.*
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FROM CHAR_TBL c
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WHERE c.f1 > 'a';
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SELECT c.*
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FROM CHAR_TBL c
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WHERE c.f1 >= 'a';
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DROP TABLE CHAR_TBL;
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--
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-- Now test longer arrays of char
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--
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CREATE TABLE CHAR_TBL(f1 char(4));
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INSERT INTO CHAR_TBL (f1) VALUES ('a');
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INSERT INTO CHAR_TBL (f1) VALUES ('ab');
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INSERT INTO CHAR_TBL (f1) VALUES ('abcd');
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INSERT INTO CHAR_TBL (f1) VALUES ('abcde');
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INSERT INTO CHAR_TBL (f1) VALUES ('abcd ');
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SELECT * FROM CHAR_TBL;
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