-
## Enhancement
If a query has any CTE tables, the optimizer will skip Plan Cache for this table, see the case below:
```
mysql> create table tt (a int);
Query OK, 0 rows affected (0.02 sec)
mys…
-
Dear, I think record index is an amazing feature. However, I got some problem if I want to select a lots of records:
Backgroud:
hudi_table_path = ("/ilw/test/...")
updated_sub_df = spark.read.for…
ziudu updated
2 weeks ago
-
```
materialize=> create view v as select 1;
CREATE VIEW
materialize=> subscribe (select * from v) as of 1 up to 18446744073709551615;
NOTICE: 00000: subscribe as of 18446744073709551615 (inclusi…
-
## Enhancement
For queries like `select t_small join {subquery} t_big on t_small.c=t_big.c` or `select * from t_small, {subquery} t_big where t_small.c=t_big.c`, TiDB always tries to decorrelate sub-…
-
## Problem
Submitting a `CREATE MATERIALIZED VIEW` query of the form
```sql
CREATE MATERIALIZED VIEW materialize.accounts_29.test_view AS
SELECT
COALESCE(f_1, lag(f_1, 1) IGNORE NULLS OVE…
-
I am trying to make this query optimizer friendly.
```python
object.reactions.all().values("type").annotate(authors=ArrayAgg("author__full_name", ordering="-date_created"))
```
As you can see I …
-
We're considering the adoption of DataFusion as a replacement for our custom query planner and plan optimizer. However this would require the ability to extend the Optimizer with custom optimization r…
-
**Summary**
in the test suites of duckdb (https://duckdb.org/dev/testing) there's an important feature called query verification:
```
[Query Verification](https://duckdb.org/dev/testing#query-v…
-
Issue: The query takes x time sometimes, and most of the times it takes 2x time. In less probability the query also fails with optimiser timeout error.
Observations:
1. Prometheus: The memory, cpu…
-
Hello,
I've got the training results of my own data, and when I do the interpolation visualization, I run into the following problem
```[Config] merge from parent file: config/npu_data/dataset.yml…