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ClickHouse® is a real-time analytics DBMS
b0f9112696
Since this may create pretty odd issues, since reading 0 bytes will
return 0, and some code may not be ready for this.
v0: add a check in ReadBuffer ctor
v2: Do not create empty ReadBuffer from BufferWithOwnMemory with empty size
v3:
- revert "Do not create empty ReadBuffer from BufferWithOwnMemory with empty size"
- Replace INVALID_SETTING_VALUE with LOGICAL_ERROR
- Move the check for empty buffer in ReadBuffer into reading because of MMapReadBufferFromFile
v4: replace with assert of internal_buffer.size()
v5: move assertion to implementations since there are exceptions for
nested readers, like LimitReadBuffer and similar.
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ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time.
Useful Links
- Official website has a quick high-level overview of ClickHouse on the main page.
- Tutorial shows how to set up and query a small ClickHouse cluster.
- Documentation provides more in-depth information.
- YouTube channel has a lot of content about ClickHouse in video format.
- Slack and Telegram allow chatting with ClickHouse users in real-time.
- Blog contains various ClickHouse-related articles, as well as announcements and reports about events.
- Code Browser with syntax highlight and navigation.
- Contacts can help to get your questions answered if there are any.