PostgreSQL 8.0 Documentation.........................................................................................519 31-4. R-tree Strategies ................................................................................... .........................................................................................521 31-7. R-tree Support Functions............................................................................. that C-style backslash escapes are available: \b is a backspace, \f is a form feed, \n is a newline, \r is a carriage return, \t is a tab, and \xxx, where xxx is an octal number, is a byte with the corresponding0 码力 | 1422 页 | 9.92 MB | 1 年前3
PostgreSQL 8.0 Documentation.........................................................................................491 31-4. R-tree Strategies ................................................................................... .........................................................................................492 31-7. R-tree Support Functions............................................................................. that C-style backslash escapes are available: \b is a backspace, \f is a form feed, \n is a newline, \r is a carriage return, \t is a tab, and \xxx, where xxx is an octal number, is a byte with the corresponding0 码力 | 1332 页 | 9.76 MB | 1 年前3
PostgreSQL 8.1 Documentation.........................................................................................557 32-4. R-tree Strategies ................................................................................... .........................................................................................559 32-7. R-tree Support Functions............................................................................. that C-style backslash escapes are available: \b is a backspace, \f is a form feed, \n is a newline, \r is a carriage return, \t is a tab. Also supported is \digits, where digits represents an octal byte0 码力 | 1548 页 | 11.54 MB | 1 年前3
PostgreSQL 8.1.11 Documentation.........................................................................................560 32-4. R-tree Strategies ................................................................................... .........................................................................................562 32-7. R-tree Support Functions............................................................................. that C-style backslash escapes are available: \b is a backspace, \f is a form feed, \n is a newline, \r is a carriage return, \t is a tab. Also supported is \digits, where digits represents an octal byte0 码力 | 1582 页 | 12.19 MB | 1 年前3
PostgreSQL 12.17 Documentation................................................................. 1135 37.4. GiST Two-Dimensional “R-tree” Strategies ........................................................... 1135 37.5. SP-GiST Point Escape Sequences Backslash Escape Sequence Interpretation \b backspace \f form feed \n newline \r carriage return \t tab \o, \oo, \ooo (o = 0 - 7) octal byte value \xh, \xhh (h = 0 - 9, A - F) hexadecimal $function$ BEGIN RETURN ($1 ~ $q$[\t\r\n\v\\]$q$); 37 SQL Syntax END; $function$ Here, the sequence $q$[\t\r\n\v\\]$q$ represents a dollar-quoted literal string [\t\r\n\v \\], which will be recognized0 码力 | 2786 页 | 12.72 MB | 1 年前3
PostgreSQL 9.5.25 Documentation
Escape Sequences Backslash Escape Sequence Interpretation \b backspace \f form feed \n newline \r carriage return \t tab \o, \oo, \ooo (o = 0 - 7) octal byte value \xh, \xhh (h = 0 - 9, A - F) hexadecimal example: $function$ BEGIN RETURN ($1 ~ $q$[\t\r\n\v\\]$q$); END; $function$ Here, the sequence $q$[\t\r\n\v\\]$q$ represents a dollar-quoted literal string [\t\r\n\v\\], which will be recognized when the types of qualified join are: INNER JOIN For each row R1 of T1, the joined table has a row for each row in T2 that satisfies the join condition with R1. LEFT OUTER JOIN First, an inner join is performed0 码力 | 2558 页 | 6.27 MB | 1 年前3
PostgreSQL 12.17 Documentation................................................................. 1195 37.4. GiST Two-Dimensional “R-tree” Strategies ................................................................ 1196 37.5. SP-GiST Escape Sequences Backslash Escape Sequence Interpretation \b backspace \f form feed \n newline \r carriage return \t tab \o, \oo, \ooo (o = 0 - 7) octal byte value \xh, \xhh (h = 0 - 9, A - F) hexadecimal $function$ BEGIN RETURN ($1 ~ $q$[\t\r\n\v\\]$q$); END; $function$ Here, the sequence $q$[\t\r\n\v\\]$q$ represents a dollar-quoted literal string [\t\r\n\v\\], which will be recognized when the0 码力 | 2943 页 | 12.61 MB | 1 年前3
PostgreSQL 9.4 DocumentationEscape Sequences Backslash Escape Sequence Interpretation \b backspace \f form feed \n newline \r carriage return \t tab \o, \oo, \ooo (o = 0 - 7) octal byte value \xh, \xhh (h = 0 - 9, A - F) hexadecimal example: $function$ BEGIN RETURN ($1 ~ $q$[\t\r\n\v\\]$q$); END; $function$ Here, the sequence $q$[\t\r\n\v\\]$q$ represents a dollar-quoted literal string [\t\r\n\v\\], which will be recognized when the types of qualified join are: INNER JOIN For each row R1 of T1, the joined table has a row for each row in T2 that satisfies the join condition with R1. LEFT OUTER JOIN First, an inner join is performed0 码力 | 2603 页 | 6.05 MB | 1 年前3
PostgreSQL 9.4.26 Documentation
Escape Sequences Backslash Escape Sequence Interpretation \b backspace \f form feed \n newline \r carriage return \t tab \o, \oo, \ooo (o = 0 - 7) octal byte value \xh, \xhh (h = 0 - 9, A - F) hexadecimal example: $function$ BEGIN RETURN ($1 ~ $q$[\t\r\n\v\\]$q$); END; $function$ Here, the sequence $q$[\t\r\n\v\\]$q$ represents a dollar-quoted literal string [\t\r\n\v\\], which will be recognized when the types of qualified join are: INNER JOIN For each row R1 of T1, the joined table has a row for each row in T2 that satisfies the join condition with R1. LEFT OUTER JOIN First, an inner join is performed0 码力 | 2452 页 | 5.99 MB | 1 年前3
PostgreSQL 9.5 DocumentationEscape Sequences Backslash Escape Sequence Interpretation \b backspace \f form feed \n newline \r carriage return \t tab \o, \oo, \ooo (o = 0 - 7) octal byte value \xh, \xhh (h = 0 - 9, A - F) hexadecimal example: $function$ BEGIN RETURN ($1 ~ $q$[\t\r\n\v\\]$q$); END; $function$ Here, the sequence $q$[\t\r\n\v\\]$q$ represents a dollar-quoted literal string [\t\r\n\v\\], which will be recognized when the types of qualified join are: INNER JOIN For each row R1 of T1, the joined table has a row for each row in T2 that satisfies the join condition with R1. LEFT OUTER JOIN First, an inner join is performed0 码力 | 2714 页 | 6.33 MB | 1 年前3
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