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* Make it the responsibility of the connection to hold on to a visitor for ↵Jon Leighton2011-08-081-4/+2
| | | | generating SQL, rather than the TreeManager. (There is a related commit coming in Active Record.)
* Support update statements containing joinsJon Leighton2011-08-081-4/+1
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* Add nodes for boolean constantsDaniel Cadenas2011-08-031-0/+8
| | | | | | | | | | | | 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))
* Merge pull request #69 from thedarkone/oracle-order-by-updateAaron Patterson2011-07-261-0/+12
|\ | | | | Oracle does not allow ORDER BY/LIMIT in UPDATE queries
| * Oracle does not allow ORDER BY/LIMIT in UPDATE queries.thedarkone2011-07-261-0/+12
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* | supressing nested parenthesis in multiple unions on mysql. thanks jhtwong. ↵Aaron Patterson2011-07-201-0/+22
| | | | | | | | fixes #58
* | fix depth first visitor to support ascending and descending nodesAaron Patterson2011-06-291-0/+2
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* | Merge branch 'master' into Khronos/masterAaron Patterson2011-06-275-18/+76
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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 Patterson2011-06-271-4/+8
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| * | Merge pull request #60 from arkadiyk/masterAaron Patterson2011-06-241-9/+59
| |\ \ | | | | | | | | Better support for MSSQL
| | * | remove unnecessary guarding agains literalarkadiy kraportov2011-06-101-10/+0
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| | * | LIMIT and OFFSET support for MS SQLarkadiy kraportov2011-06-091-9/+69
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| * / Break Ordering into Ascending/Descending nodes, allow reversalErnie Miller2011-06-153-4/+7
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| * do not cache sql literal valuesAaron Patterson2011-05-171-1/+2
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* | Removed some old dev codeMartin Little2011-05-161-7/+0
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* | Added initial informix visitor supportMartin Little2011-05-161-0/+40
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* refactoring to a methodAaron Patterson2011-05-101-3/+11
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* Make ToSql more thread safe.Damon McCormick + Cameron Walters2011-05-101-5/+4
| | | | | | | 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.
* Merge branch 'master' of github.com:rails/arelAaron Patterson2011-04-291-0/+12
|\ | | | | | | | | | | * 'master' of github.com:rails/arel: replace 'LIMIT n' with 'FETCH FIRST n ROWS ONLY' when using ibm_db Generate more sqlish queue.
| * replace 'LIMIT n' with 'FETCH FIRST n ROWS ONLY' when using ibm_dbShane Emmons2011-04-291-0/+12
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* | removing the aliased orders method from the pg visitorAaron Patterson2011-04-281-13/+0
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* raising not implemented exceptions for distinct on where it is not supportedAaron Patterson2011-04-211-0/+4
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* adding Distinct ON nodeAaron Patterson2011-04-212-27/+4
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* adding a DISTINCT nodeAaron Patterson2011-04-211-0/+5
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* adding a Bin node to emit mysql BINARY keywordsAaron Patterson2011-04-112-0/+8
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* use TableAlias nodes for aliasing subselectsAaron Patterson2011-03-301-1/+1
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* allowing sql literals for values in insert statementsAaron Patterson2011-03-211-1/+5
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* Merge branch 'master' of github.com:rails/arelAaron Patterson2011-03-211-13/+6
|\ | | | | | | | | | | * 'master' of github.com:rails/arel: Make as factory method convert alias name to SqlLiteral Replace MathOperation with InfixOperation to support more operators
| * Replace MathOperation with InfixOperation to support more operatorsErnie Miller2011-03-091-13/+6
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* | Fixes rails bug #6058.Hugo Peixoto2011-03-211-0/+1
|/ | | | Propagates 'where' clauses when subquerying is triggered on the UpdateManager.
* Merge branch 'master' of github.com:rails/arelAaron Patterson2011-03-071-1/+1
|\ | | | | | | | | * '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 Leighton2011-03-041-1/+1
| | | | | | | | 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).
* | Merge remote branch 'stiff/master' into omgAaron Patterson2011-03-071-0/+16
|\ \ | |/ |/| | | | | * stiff/master: implemented support for math operations in numeric attributes
| * implemented support for math operations in numeric attributesVladimir Meremyanin2011-01-291-0/+16
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* | refactoring custom lock logic to use sql literalsAaron Patterson2011-02-212-10/+2
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* | Lock should be a unary nodeAaron Patterson2011-02-212-4/+4
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* | Merge remote branch 'jstorimer/master' into omgAaron Patterson2011-02-212-2/+10
|\ \ | | | | | | | | | | | | * jstorimer/master: Allow database specific locking clauses to be used
| * | Allow database specific locking clauses to be usedJesse Storimer2011-01-202-2/+10
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* | | use the cache mechanism in the connection pool rather than our own cacheAaron Patterson2011-02-071-28/+3
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* | | adding TOP to sub selects for mssqlAaron Patterson2011-02-022-9/+19
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* | Added MINUS for OracleBrian Cardarella2011-01-231-0/+4
| | | | | | | | Aliased :minus to :except for the SelectManager
* | Added support for INTERSECT and EXCEPTBrian Cardarella2011-01-221-0/+8
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* | WTF, tabs?Paul Sadauskas2011-01-211-17/+17
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* | WITH expr as array in visitorPaul Sadauskas2011-01-211-2/+2
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* | Don't need with_recursivePaul Sadauskas2011-01-211-1/+0
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* | Add support for WITH and UNIONPaul Sadauskas2011-01-211-0/+18
|/ | | | | | PostgreSQL WITH RECURSIVE support Make WITH be a unary node
* Added Arel::Nodes::NamedFunction for representing generic SQL functionsAaron Patterson2011-01-043-7/+32
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* Merge branch '2-0-stable'Aaron Patterson2011-01-041-1/+0
|\ | | | | | | | | * 2-0-stable: visiting via superclass is OK, since module definitions help delegate
| * visiting via superclass is OK, since module definitions help delegateAaron Patterson2011-01-041-1/+0
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* | Merge branch '2-0-stable'Aaron Patterson2011-01-032-2/+2
|\| | | | | | | | | * 2-0-stable: adding better tests surrounding limits in adapter visitors
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