New Locking, Various Bugfixes, UI Improvements - Githubissues

polypheny / Polypheny-DB

A self-adaptive Polystore that provides cost- and workload aware access to heterogeneous data.

https://polypheny.org

Apache License 2.0

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New Locking, Various Bugfixes, UI Improvements #502

Closed datomo closed 3 months ago

datomo commented 4 months ago

Summary

This PR requires the PR #98 from Polypheny-UI.

This PR fixes various bugs and inconsistencies. The main features are adjustment to the LockManager and evaluation of new constraints upon creation.

Fixes:

Wrong transaction times #5]
Error on startup -> added missing restore logic
Materialized views from constants
Improved robustness of statistics to remove random exceptions
Fixed errors in CURRENT and LOCAL time functions for SQL
Fix for namespace queries in MQL (DMLs, DQLs)
Adjustment to integrity checks

Changes

New LockManager
Attaching new constraint to transaction for evaluation during commit