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hydradatabase
Hydra: Column-oriented Postgres. Add scalable analytics to your project in minutes.
### What's wrong? It seems that Hydra's columnar is using the same name as citus columnar This may introduce a problem: you can not install `hydra` and `citus` packages simultaneously....
[Bug]: When creating a temporary hydra table and making modifications to it, memory overflow occurs
### What's wrong? When creating a temporary hydra table and making modifications to it, memory overflow occurs
### What's wrong? Hi, When I see the [`CostColumnarIndexPath()`](https://github.com/hydradatabase/hydra/blob/2c2630c48b5c703e8df114dedafdd8c06ab47855/columnar/src/backend/columnar/columnar_customscan.c#L621) code, it seems that the cost of the columnar index scan is calculated when `columnar.enable_columnar_index_scan` is disabled.
### What's wrong? Hi, When I read the regression test in [columnar_cache.sql](https://github.com/hydradatabase/hydra/blob/main/columnar/src/test/regress/sql/columnar_cache.sql), I noticed that it contains the following test case: ```SQL CREATE TABLE big_table ( id INT, firstname TEXT,...
The InsertTupleAndEnforceConstraints() constructed tuple on-the-fly, and on other reference, so we can safely set shouldFree to true for ExecStoreHeapTuple() to avoid duplicate memory allocation. Here is my environment: ```shell $...
When UpdateChunkSkipNodeMinMax() is executed, it may allocate memory for non-fixed size data types. If the minimum or maximum value changes, the previous value will be overwritten, resulting in a memory...
This commit also changes the column type length judgment in `ReadChunkGroupNextVector()`. According to Postgres code, not all platforms have `sizeof(Datum) == 8` [1], so it might be better to use...
At present, we have two planner hooks in columnar_customscan.c and columnar_planner_hook.c separately. The first hook only sets stmt->parallelModeNeeded to zero when the query is a CREATE TABLE AS statement, so...
### What's wrong? I have a column table as follows, which periodically calls insert SQL to write data. ```sql CREATE TABLE public.log_developer_api_code_msg ( id bigserial NOT NULL, data_source text NULL,...
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Hydra: Column-oriented Postgres. Add scalable analytics to your project in minutes.