[CALCITE-2662] Planner: allow parsing directly a stream instead of a java.lang.String

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.17.0
• Fix Version/s: 1.18.0
• Component/s: core
• Assignee: Julian Hyde
• Reporter: Enrico Olivelli
• Created: 08/Nov/18 07:07
• Updated: 23/Dec/18 00:11
• Resolved: 04/Dec/18 00:49

Description

In 1.17.0 the org.apache.calcite.tools.Planner interface only accept a java.lang.String as input.

In order to reduce memory allocations and copies it will be useful that the planner could accept the query in a more 'raw' format.

Creating a java.lang.String is very expensive, and if your "query" is coming from the network (think about a Netty Direct memory ByteBuf) you are forced to create a copy of the text of the query.