Apache Calcite get started example. Enables SQL over in-memory json objects stored in java.util.Map.
<dependency>
<groupId>org.apache.calcite</groupId>
<artifactId>calcite-core</artifactId>
<version>1.23.0</version>
</dependency>
Donsen Hong henyihanwobushi
andriika
/ > calcite get started.md
Last active
April 19, 2024 08:25
Apache Calcite get started example. Enables SQL over in-memory json objects stored in java.util.Map.
nerzid
/ O'Reilly Free Books
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March 9, 2018 05:33
— forked from stripedpurple/O'Reilly Free Books
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| http://www.oreilly.com/data/free/files/2014-data-science-salary-survey.pdf | |
| http://www.oreilly.com/data/free/files/2015-data-science-salary-survey.pdf | |
| http://www.oreilly.com/data/free/files/Data_Analytics_in_Sports.pdf | |
| http://www.oreilly.com/data/free/files/advancing-procurement-analytics.pdf | |
| http://www.oreilly.com/data/free/files/ai-and-medicine.pdf | |
| http://www.oreilly.com/data/free/files/analyzing-data-in-the-internet-of-things.pdf | |
| http://www.oreilly.com/data/free/files/analyzing-the-analyzers.pdf | |
| http://www.oreilly.com/data/free/files/architecting-data-lakes.pdf | |
| http://www.oreilly.com/data/free/files/being-a-data-skeptic.pdf | |
| http://www.oreilly.com/data/free/files/big-data-analytics-emerging-architecture.pdf |
rgreenjr
/ postgres_queries_and_commands.sql
Last active
May 28, 2025 00:59
Useful PostgreSQL Queries and Commands
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| -- show running queries (pre 9.2) | |
| SELECT procpid, age(clock_timestamp(), query_start), usename, current_query | |
| FROM pg_stat_activity | |
| WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' | |
| ORDER BY query_start desc; | |
| -- show running queries (9.2) | |
| SELECT pid, age(clock_timestamp(), query_start), usename, query | |
| FROM pg_stat_activity | |
| WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' |