mirror of https://github.com/citusdata/citus.git
c244b8ef4a
So far router planner had encapsulated different functionality in MultiRouterPlanCreate. Modifications always go through router, selects sometimes. Modifications always error out if the query is unsupported, selects return NULL. Especially the error handling is a problem for the upcoming extension of prepared statement support. Split MultiRouterPlanCreate into CreateRouterPlan and CreateModifyPlan, and change them to not throw errors. Instead errors are now reported by setting the new MultiPlan->plannigError. Callers of router planner functionality now have to throw errors themselves if desired, but also can skip doing so. This is a pre-requisite for expanding prepared statement support. While touching all those lines, improve a number of error messages by getting them closer to the postgres error message guidelines. |
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