- QUERY: SELECT 'first line'
- ' - next line'
- ' - third line'
- AS "Three lines to one";
- Three lines to one
- -----------------------------------
- first line - next line - third line
- (1 row)
- QUERY: SELECT 'first line'
- ' - next line' /* this comment is not allowed here */
- ' - third line'
- AS "Illegal comment within continuation";
- ERROR: parser: parse error at or near "'"
- QUERY: SELECT CAST(f1 AS text) AS "text(char)" FROM CHAR_TBL;
- text(char)
- ----------
- a
- ab
- abcd
- abcd
- (4 rows)
- QUERY: SELECT CAST(f1 AS text) AS "text(varchar)" FROM VARCHAR_TBL;
- text(varchar)
- -------------
- a
- ab
- abcd
- abcd
- (4 rows)
- QUERY: SELECT CAST(name 'namefield' AS text) AS "text(name)";
- text(name)
- ----------
- namefield
- (1 row)
- QUERY: SELECT CAST(f1 AS char) AS "char(text)" FROM TEXT_TBL;
- char(text)
- -----------------
- doh!
- hi de ho neighbor
- (2 rows)
- QUERY: SELECT CAST(f1 AS char) AS "char(varchar)" FROM VARCHAR_TBL;
- char(varchar)
- -------------
- a
- ab
- abcd
- abcd
- (4 rows)
- QUERY: SELECT CAST(name 'namefield' AS char) AS "char(name)";
- char(name)
- ----------
- namefield
- (1 row)
- QUERY: SELECT CAST(f1 AS varchar) AS "varchar(text)" FROM TEXT_TBL;
- varchar(text)
- -----------------
- doh!
- hi de ho neighbor
- (2 rows)
- QUERY: SELECT CAST(f1 AS varchar) AS "varchar(char)" FROM CHAR_TBL;
- varchar(char)
- -------------
- a
- ab
- abcd
- abcd
- (4 rows)
- QUERY: SELECT CAST(name 'namefield' AS varchar) AS "varchar(name)";
- varchar(name)
- -------------
- namefield
- (1 row)
- QUERY: SELECT TRIM(BOTH FROM ' bunch o blanks ') AS "bunch o blanks";
- bunch o blanks
- --------------
- bunch o blanks
- (1 row)
- QUERY: SELECT TRIM(LEADING FROM ' bunch o blanks ') AS "bunch o blanks ";
- bunch o blanks
- ----------------
- bunch o blanks
- (1 row)
- QUERY: SELECT TRIM(TRAILING FROM ' bunch o blanks ') AS " bunch o blanks";
- bunch o blanks
- ----------------
- bunch o blanks
- (1 row)
- QUERY: SELECT TRIM(BOTH 'x' FROM 'xxxxxsome Xsxxxxx') AS "some Xs";
- some Xs
- -------
- some Xs
- (1 row)
- QUERY: SELECT SUBSTRING('1234567890' FROM 3) AS "34567890";
- 34567890
- --------
- 34567890
- (1 row)
- QUERY: SELECT SUBSTRING('1234567890' FROM 4 FOR 3) AS "456";
- 456
- ---
- 456
- (1 row)
- QUERY: SELECT POSITION('4' IN '1234567890') AS "4";
- 4
- -
- 4
- (1 row)
- QUERY: SELECT POSITION(5 IN '1234567890') AS "5";
- 5
- -
- 5
- (1 row)
- QUERY: SELECT 'unknown' || ' and unknown' AS "Concat unknown types";
- Concat unknown types
- --------------------
- unknown and unknown
- (1 row)
- QUERY: SELECT text 'text' || ' and unknown' AS "Concat text to unknown type";
- Concat text to unknown type
- ---------------------------
- text and unknown
- (1 row)
- QUERY: SELECT text 'text' || char ' and char' AS "Concat text to char";
- Concat text to char
- -------------------
- text and char
- (1 row)
- QUERY: SELECT text 'text' || varchar ' and varchar' AS "Concat text to varchar";
- Concat text to varchar
- ----------------------
- text and varchar
- (1 row)