class PostgreSQLQueryBuilder extends DBQueryBuilder (View source)

Constants

MAX_TABLE

Max table length.

Aliases longer than this will be re-written

Methods

public
string
getSeparator()

Determines the line separator to use.

public
string
buildSQL(SQLExpression $query, array $parameters)

Builds a sql query with the specified connection

protected
string
buildSelectQuery(SQLSelect $query, array $parameters)

Builds a query from a SQLSelect expression

protected
string
buildDeleteQuery(SQLDelete $query, array $parameters)

Builds a query from a SQLDelete expression

protected
string
buildInsertQuery(SQLInsert $query, array $parameters)

Builds a query from a SQLInsert expression

protected
string
buildUpdateQuery(SQLUpdate $query, array $parameters)

Builds a query from a SQLUpdate expression

protected
string
buildSelectFragment(SQLSelect $query, array $parameters)

Returns the SELECT clauses ready for inserting into a query.

public
string
buildDeleteFragment(SQLDelete $query, array $parameters)

Return the DELETE clause ready for inserting into a query.

public
string
buildUpdateFragment(SQLUpdate $query, array $parameters)

Return the UPDATE clause ready for inserting into a query.

public
string
buildFromFragment(SQLConditionalExpression $query, array $parameters)

Return the FROM clause ready for inserting into a query.

public
string
buildWhereFragment(SQLConditionalExpression $query, array $parameters)

Returns the WHERE clauses ready for inserting into a query.

public
string
buildOrderByFragment(SQLSelect $query, array $parameters)

Returns the ORDER BY clauses ready for inserting into a query.

public
string
buildGroupByFragment(SQLSelect $query, array $parameters)

Returns the GROUP BY clauses ready for inserting into a query.

public
string
buildHavingFragment(SQLSelect $query, array $parameters)

Returns the HAVING clauses ready for inserting into a query.

public
string
buildLimitFragment(SQLSelect $query, array $parameters)

Return the LIMIT clause ready for inserting into a query.

protected
array
findRewrites(SQLConditionalExpression $query)

Find and generate table aliases necessary in the given query

protected
string
rewriteLongIdentifiers(SQLExpression $query, string $sql)

Rewrite all AS "Identifier" with strlen(Identifier) > 63

Details

string getSeparator()

Determines the line separator to use.

Return Value

string

Non-empty whitespace character

string buildSQL(SQLExpression $query, array $parameters)

Builds a sql query with the specified connection

Parameters

SQLExpression $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

The resulting SQL as a string

protected string buildSelectQuery(SQLSelect $query, array $parameters)

Builds a query from a SQLSelect expression

Parameters

SQLSelect $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed SQL string

protected string buildDeleteQuery(SQLDelete $query, array $parameters)

Builds a query from a SQLDelete expression

Parameters

SQLDelete $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed SQL string

protected string buildInsertQuery(SQLInsert $query, array $parameters)

Builds a query from a SQLInsert expression

Parameters

SQLInsert $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed SQL string

protected string buildUpdateQuery(SQLUpdate $query, array $parameters)

Builds a query from a SQLUpdate expression

Parameters

SQLUpdate $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed SQL string

protected string buildSelectFragment(SQLSelect $query, array $parameters)

Returns the SELECT clauses ready for inserting into a query.

Parameters

SQLSelect $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed select part of statement

string buildDeleteFragment(SQLDelete $query, array $parameters)

Return the DELETE clause ready for inserting into a query.

Parameters

SQLDelete $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed delete part of statement

string buildUpdateFragment(SQLUpdate $query, array $parameters)

Return the UPDATE clause ready for inserting into a query.

Parameters

SQLUpdate $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed from part of statement

string buildFromFragment(SQLConditionalExpression $query, array $parameters)

Return the FROM clause ready for inserting into a query.

Parameters

SQLConditionalExpression $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed from part of statement

string buildWhereFragment(SQLConditionalExpression $query, array $parameters)

Returns the WHERE clauses ready for inserting into a query.

Parameters

SQLConditionalExpression $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed where condition

string buildOrderByFragment(SQLSelect $query, array $parameters)

Returns the ORDER BY clauses ready for inserting into a query.

Parameters

SQLSelect $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed order by part of statement

string buildGroupByFragment(SQLSelect $query, array $parameters)

Returns the GROUP BY clauses ready for inserting into a query.

Parameters

SQLSelect $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

Completed group part of statement

string buildHavingFragment(SQLSelect $query, array $parameters)

Returns the HAVING clauses ready for inserting into a query.

Parameters

SQLSelect $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

string buildLimitFragment(SQLSelect $query, array $parameters)

Return the LIMIT clause ready for inserting into a query.

Parameters

SQLSelect $query

The expression object to build from

array $parameters

Out parameter for the resulting query parameters

Return Value

string

The finalised limit SQL fragment

protected array findRewrites(SQLConditionalExpression $query)

Find and generate table aliases necessary in the given query

Parameters

SQLConditionalExpression $query

Return Value

array

List of replacements

protected string rewriteLongIdentifiers(SQLExpression $query, string $sql)

Rewrite all AS "Identifier" with strlen(Identifier) > 63

Parameters

SQLExpression $query
string $sql

Return Value

string