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The new scenario saves the state of the previous one, which shouldn't be
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Although a cost-based optimizer is not a near-term goal as discussed in #7014,
we have some other motivations to collect statistics:
1. Users can use these statistics when they themselves plan the …
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### Is there an existing integration?
- [X] I have searched the existing integrations.
### Use Case
This file handler extension helps in reading parquet files, the popular columnar storage format.
…
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**Is your feature request related to a problem? Please describe.**
Retrieving data from larger queries is painfully slow. In the trace below, the query completed in < 1s, but then it took over 2 minu…
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### Describe this problem
It seems there is no check for insert a null value of a not-null column now, and the datafusion may panic when processing such case. Here is the stacktrace:
```plaintext
…
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This proposal is about extending Druid to support multi-stage distributed queries, something that I think will be really exciting and amp up what Druid is capable of.
## Motivation
Today Druid's…
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# Database
A database is a collection of structured data that is organized and stored in a way that enables efficient retrieval and manipulation of the data. A database can be used to store and man…
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I am not able to compile the extension on ubuntu.
```
postgres@pg:~/parquet_fdw$ uname -a
Linux pg 5.15.0-52-generic #58-Ubuntu SMP Thu Oct 13 08:03:55 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
…
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```
CREATE TABLE test(i int) USING columnar;
SELECT alter_columnar_table_set('test'::regclass, compression=>'lz4');
INSERT INTO test VALUES(1);
VACUUM VERBOSE test;
```
```
INFO: statistics …
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From our discussions on v3 my sense is that we need a clear mission statement for v3.
Creating a new storage format provides the opportunity to address problems of existing formats in a backwards-i…