Jiang Xingbo created SPARK-19024:
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Summary: Don't generate SQL query on CREATE/ALTER a view
Key: SPARK-19024
URL: https://issues.apache.org/jira/browse/SPARK-19024
Project: Spark
Issue Type: Sub-task
Components: SQL
Reporter: Jiang Xingbo
On CREATE/ALTER a view, it's no longer needed to generate a SQL text string
from the LogicalPlan, instead we store the SQL query text、the output schema of
the LogicalPlan, and current database to CatalogTable. The new view resolution
approach will be able to resolve the view.
The main advantage includes:
1. If you update an underlying view, the current view also gets updated;
2. That gives us a change to get ride of SQL generation for operators.
Should bring in the following changes:
1. Add new params to `CatalogTable`, that represents the SQL query
text、 the output schema of the LogicalPlan, and current database, on the time
when the view is created;
2. Update the commands `CreateViewCommand` and `AlterViewAsCommand`,
get rid of SQL generation in them.
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