Gian Merlino ff59d2e78b Move RowSignature from druid-sql to druid-processing and make use of it. (#9508) ... * Move RowSignature from druid-sql to druid-processing and make use of it. 1) Moved (most of) RowSignature from sql to processing. Left behind the SQL-specific stuff in a RowSignatures utility class. It also picked up some new convenience methods along the way. 2) There were a lot of places in the code where Map<String, ValueType> was used to associate columns with type info. These are now all replaced with RowSignature. 3) QueryToolChest's resultArrayFields method is replaced with resultArraySignature, and it now provides type info. * Fix up extensions. * Various fixes		2020-03-12 11:06:44 -07:00
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src	Move RowSignature from druid-sql to druid-processing and make use of it. (#9508)	2020-03-12 11:06:44 -07:00
pom.xml	Set version to 0.18.0-SNAPSHOT (#9109)	2020-01-02 17:55:10 -05:00