ajantha-bhat opened a new pull request #3577: [HOTFIX] Fix After alter table add column schemaOrdinal is not continuous
URL:
https://github.com/apache/carbondata/pull/3577
### Why is this PR needed?
Consider a scenario with complex columns[c1 int, c2 array<int>, c3 array<int>] here schema ordinal of child columns are -1. so c1, c2, c3 has ordinal 0, 1, 2. After alter table add column "c4 int", its ordinal should be 3. But currently it is 6 (due to flat column schema).
This will give problem when this ordinal is referred for some other functionality like rearrange projection columns.
### What changes were proposed in this PR?
make schema ordinal continuous by collecting previous schema ordinal max.
### Does this PR introduce any user interface change?
- No
### Is any new testcase added?
- No
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