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  1. HPCC
  2. HPCC-9307

Conditional code improvements: Stage 1

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    Description

      This issue tracks the changes that are required for the first stage of improving conditional code. In particular fixing problems caused by multiple global graphs.

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          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. HPCC-13248 Global scalars should have cse performed on them

          • Major - Major loss of function.
          • Resolved
          relates to

          Bug - A problem which impairs or prevents the functions of the product. HPCC-9315 Conditional code improvements: Stage 2

          • Major - Major loss of function.
          • New
          1.
          		 Use graph results for spills used from child queries Sub-task Accepted Gavin Halliday
          2.
          		 Generate better code for set results within a graph Sub-task Accepted Gavin Halliday
          3.
          		 Support conditional statements in all engines Sub-task Resolved Gavin Halliday
          4.
          		 Ensure code is generated in a single graph if it is possible Sub-task Accepted Gavin Halliday
          5.
          		 Ensure NOTHOR and dali access (HPCC-9161) are handled automatically Sub-task Resolved Gavin Halliday
          6.
          		 Remove the globalAutoHoist code Sub-task Accepted Gavin Halliday
          7.
          		 Investigate removing other global hoisting code Sub-task Accepted Gavin Halliday
          8.
          		 Allow some dependent actions to be generated in the same graph Sub-task Resolved Gavin Halliday
          9.
          		 action1.ecl - spilling single row should go via workunit. Sub-task Resolved Gavin Halliday
          10.
          		 Remove empty actions for else branches Sub-task Resolved Gavin Halliday
          11.
          		 Improve handling of conditional spills Sub-task Resolved Jake Smith
          12.
          		 Add Thor support for TAKsequential and TAKparallel Sub-task Resolved Jake Smith
          13.
          		 Optimize pe and colocal for child queries Sub-task Resolved Gavin Halliday
          14.
          		 Generate IF(a, NULL, b) as IF(!a, b) Sub-task Resolved Gavin Halliday
          15.
          		 Combine ds[1].x and ds[1].y when hoisting expressions in resourcer Sub-task Resolved Gavin Halliday
          16.
          		 Optimize activity generated for dataset.row Sub-task Resolved Gavin Halliday
          17.
          		 Some fields serialized unnecessarily Sub-task Resolved Gavin Halliday
          18.
          		 Add library versions of exists and count helpers Sub-task Resolved Gavin Halliday
          19.
          		 Check if LEFT.xyz is better to clone or spill in roxie (if already a linked row) Sub-task Resolved Available for anyone
          20.
          		 Don't create so many temporaries for boolean return values Sub-task Resolved Gavin Halliday
          21.
          		 Support implicit project on an aggregate Sub-task Resolved Gavin Halliday
          22.
          		 Fix incorrect new attributes on no_selects Sub-task Resolved Gavin Halliday
          23.
          		 Optimize getResultRowset extracting a single row. Sub-task Accepted Gavin Halliday
          24.
          		 Avoid cloning rows which are extracted from workunit results. Sub-task Resolved Gavin Halliday
          25.
          		 Child queries don't optimize fields after spills created Sub-task Resolved Gavin Halliday
          26.
          		 Improve handling of action lists Sub-task Resolved Gavin Halliday
          27.
          		 Common up IF(project, project) Sub-task Resolved Gavin Halliday
          28.
          		 Add a TAKcaseaction Sub-task Accepted Available for anyone
          29.
          		 Conditionals *Outstanding problems* Sub-task Accepted Gavin Halliday
          30.
          		 Conditionals: Options requiring enabling simultaneously Sub-task Accepted Gavin Halliday
          31.
          		 Fix internal error caused by activities in the same graph Sub-task Resolved Gavin Halliday
          32.
          		 Use graph results for current workunit spills Sub-task Resolved Gavin Halliday
          33.
          		 Improve cses for conditional datasets in child queries Sub-task Resolved Gavin Halliday
          34.
          		 Reorganise the graph transformations Sub-task Resolved Gavin Halliday
          35.
          		 Generate global set results in activties Sub-task Accepted Gavin Halliday
          36.
          		 Improve creation of global scalar expressions Sub-task Resolved Gavin Halliday

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              ghalliday Gavin Halliday
              ghalliday Gavin Halliday
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              Dates

                Created:
                Updated: