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* Make it the responsibility of the connection to hold on to a visitor for ↵Jon Leighton2011-08-0814-27/+31
| | | | generating SQL, rather than the TreeManager. (There is a related commit coming in Active Record.)
* Support update statements containing joinsJon Leighton2011-08-081-0/+13
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* Add nodes for boolean constantsDaniel Cadenas2011-08-032-0/+26
| | | | | | | | | | | | This is useful for dynamically created predicates e.g: expr1 = table.create_false expr2 = table.create_false expr1 = create_a_predicate() if some_condition expr2 = create_another_predicate() if some_other_condition table.where(expr1.and(expr2))
* supressing nested parenthesis in multiple unions on mysql. thanks jhtwong. ↵Aaron Patterson2011-07-201-0/+10
| | | | fixes #58
* fix depth first visitor to support ascending and descending nodesAaron Patterson2011-06-291-0/+9
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* Merge branch 'master' into Khronos/masterAaron Patterson2011-06-2710-18/+151
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | * master: visitors can define their own cache strategy for dispatch. fixes #57 Break Ordering into Ascending/Descending nodes, allow reversal remove unnecessary guarding agains literal LIMIT and OFFSET support for MS SQL Include Arel::Predicates to Arel::Nodes::Function so you can do table[:id].count.eq(2) updating spec zomg prep release make sure thread runs do not cache sql literal values no longer use this instance variable
| * visitors can define their own cache strategy for dispatch. fixes #57Aaron Patterson2011-06-271-0/+16
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| * Merge pull request #60 from arkadiyk/masterAaron Patterson2011-06-241-8/+47
| |\ | | | | | | Better support for MSSQL
| | * remove unnecessary guarding agains literalarkadiy kraportov2011-06-101-8/+0
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| | * LIMIT and OFFSET support for MS SQLarkadiy kraportov2011-06-091-8/+55
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| * | Break Ordering into Ascending/Descending nodes, allow reversalErnie Miller2011-06-156-8/+76
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| * Include Arel::Predicates to Arel::Nodes::Function so you can do ↵Samuel Kadolph2011-05-271-0/+9
| | | | | | | | table[:id].count.eq(2)
| * make sure thread runsAaron Patterson2011-05-171-0/+1
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| * do not cache sql literal valuesAaron Patterson2011-05-171-1/+1
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| * no longer use this instance variableAaron Patterson2011-05-171-1/+1
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* | Added an additional test since skip/limit can not be used in reverse orderMartin Little2011-05-161-0/+8
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* | Added a basic test for the informix visitorMartin Little2011-05-161-0/+34
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* Make ToSql more thread safe.Damon McCormick + Cameron Walters2011-05-101-0/+17
| | | | | | | Because the ToSql visitor instance is shared across all threads, there is a race condition around column types for binary nodes. It's possible, for instance, to end up with ActiveRecord converting a string value in the final SQL to an integer during heavy concurrent operations.
* InfixOperations are valid value expressions per SQL99 BNF, andErnie Miller2011-05-021-0/+30
| | | | should support ordering
* Stop calling to_s on aliases, require them to be strings already.Ernie Miller2011-04-292-4/+4
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* Move #as to AliasPredication, stop overriding Function's #as.Ernie Miller2011-04-292-3/+20
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* replace 'LIMIT n' with 'FETCH FIRST n ROWS ONLY' when using ibm_dbShane Emmons2011-04-291-0/+27
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* Add support for ordering on expressionsArthur Taylor2011-04-281-0/+23
| | | | | | | | | | | | | | Conflicts: lib/arel.rb lib/arel/attributes/attribute.rb lib/arel/nodes/infix_operation.rb lib/arel/nodes/named_function.rb Conflicts: lib/arel.rb lib/arel/attributes/attribute.rb
* adding attribute#lower for lowercasing an attributeAaron Patterson2011-04-251-0/+8
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* add a factory method for production LOWER functionsAaron Patterson2011-04-251-0/+7
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* raising not implemented exceptions for distinct on where it is not supportedAaron Patterson2011-04-211-0/+11
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* adding Distinct ON nodeAaron Patterson2011-04-213-3/+14
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* adding a DISTINCT nodeAaron Patterson2011-04-211-14/+23
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* adding a spec to demonstrate subqueriesAaron Patterson2011-04-181-0/+12
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* fixing Table testsAaron Patterson2011-04-181-1/+1
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* Fixed deep copy bug in SelectManager cloneArthur Taylor2011-04-191-0/+10
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* adding a Bin node to emit mysql BINARY keywordsAaron Patterson2011-04-111-0/+23
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* use TableAlias nodes for aliasing subselectsAaron Patterson2011-03-301-1/+1
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* Make SelectManager#as act like node predicationsJohn Mileham2011-03-251-2/+18
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* supporting any node in SelectManager#fromAaron Patterson2011-03-231-0/+17
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* allowing sql literals for values in insert statementsAaron Patterson2011-03-211-0/+9
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* added a factory method for creating values nodesAaron Patterson2011-03-211-0/+10
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* adding create_insert methodAaron Patterson2011-03-211-0/+6
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* Merge branch 'master' of github.com:rails/arelAaron Patterson2011-03-212-1/+16
|\ | | | | | | | | | | * 'master' of github.com:rails/arel: Make as factory method convert alias name to SqlLiteral Replace MathOperation with InfixOperation to support more operators
| * Make as factory method convert alias name to SqlLiteralErnie Miller2011-03-121-0/+6
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| * Replace MathOperation with InfixOperation to support more operatorsErnie Miller2011-03-091-1/+10
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* | Fixes rails bug #6058.Hugo Peixoto2011-03-211-0/+14
|/ | | | Propagates 'where' clauses when subquerying is triggered on the UpdateManager.
* Merge branch 'master' of github.com:rails/arelAaron Patterson2011-03-072-0/+13
|\ | | | | | | | | * 'master' of github.com:rails/arel: Add an #table_name method to Table and TableAlias, which always returns the actual table name, not the alias. Then fix ToSql#column_for to use this table name when checking whether the table exists (rather than before, where it was checking whether a table with the alias name exists, which was incorrect).
| * Add an #table_name method to Table and TableAlias, which always returns the ↵Jon Leighton2011-03-042-0/+13
| | | | | | | | actual table name, not the alias. Then fix ToSql#column_for to use this table name when checking whether the table exists (rather than before, where it was checking whether a table with the alias name exists, which was incorrect).
* | cleaning up math operations on attributesAaron Patterson2011-03-071-2/+4
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* | Merge remote branch 'stiff/master' into omgAaron Patterson2011-03-072-2/+28
|\ \ | |/ |/| | | | | * stiff/master: implemented support for math operations in numeric attributes
| * implemented support for math operations in numeric attributesVladimir Meremyanin2011-01-292-2/+28
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* | assinging nil to an offset will remove the offset from the ASTAaron Patterson2011-02-251-0/+26
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* | Adding SelectManager#limit= and removing limit nodes when nil is assigned to ↵Aaron Patterson2011-02-251-0/+9
| | | | | | | | limit
* | refactoring custom lock logic to use sql literalsAaron Patterson2011-02-212-4/+4
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