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## unity.query
Class Optimizer

    java.lang.Object
      unity.query.Optimizer

All Implemented Interfaces:
  LQTreeConstants

    public class Optimizer

extends java.lang.Object
implements LQTreeConstants

Field Summary

Fields inherited from interface unity.query.LQTreeConstants
`ADD, AGGREGATEFUNCTION, AND, APPEND, ARITH_OP, ARITHMETICFUNCTION, AS_IDENTIFIER, AS_TABLE, BAG_DIFFERENCE, BAG_INTERSECTION, BAG_UNION, BigDecimal, COMPARISON_OP, CONDITION, CONSTANTEXPRESSION, CROSSPRODUCT, DIFFERENCE, DISTRIBUTEDJOIN, DUPLICATE_ELIMINATION, DYNAMICHASHJOIN, EARLYHASHJOIN, EARLYHASHJOIN_NOBUFFER, EXPRESSION, FILTER, FULLOUTERJOIN, FUNCTION, GROUPBY, HAVING, IDENTIFIER, IN, INNERJOIN, INTEGER, INTERSECTION, JOIN, LEFTOUTERJOIN, MATCHFUNCTION, MERGE, MERGEJOIN, MINIMUM_JOIN_BUFFER_SIZE, MULT, MULT_OP, NESTEDLOOPJOIN, NOT, OR, ORDERBY, PRODUCT, PROJECTION, REAL, RIGHTOUTERJOIN, SELECTION, SQLPATTERN, STRING, TABLE, TABLE_IDENTIFIER, UNION, UNKNOWN, XOR`

Constructor Summary
`Optimizer(GlobalQuery gq)`

Method Summary
`GlobalQuery` | `optimize()`
`void` | `optimizeSubQuery(SubQuery subQuery)`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Optimizer

    public Optimizer(GlobalQuery gq)

Method Detail

### optimize

    public GlobalQuery optimize()
                         throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### optimizeSubQuery

    public void optimizeSubQuery(SubQuery subQuery)
                          throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

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