PostgreSQL DBA
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Kanal postlari
| 2 | Patroni is a widely used solution for managing PostgreSQL high availability. It provides a robust framework for automatic failover, cluster management, and operational simplicity in PostgreSQL environments.
https://www.cybertec-postgresql.com/en/patroni-cascading-replication-with-stanby-cluster/ | 341 |
| 3 | Cascading Replication
https://www.cybertec-postgresql.com/en/patroni-cascading-replication-with-stanby-cluster/ | 301 |
| 4 | https://stormatics.tech/blogs/the-1-gb-limit-that-breaks-pg_prewarm-at-scale | 247 |
| 5 | Schemas in PostgreSQL and Oracle: what is the difference?
https://www.cybertec-postgresql.com/en/schema-postgresql-oracle-difference/ | 260 |
| 6 |  Matn yo'q... | 258 |
| 7 |  Matn yo'q... | 375 |
| 8 |  Matn yo'q... | 374 |
| 9 |  Matn yo'q... | 360 |
| 10 |  Configuration Parameters | 341 |
| 11 | CREATE TABLE orders (
order_id SERIAL PRIMARY KEY,
customer_id INTEGER,
order_date DATE,
order_total NUMERIC
) PARTITION BY RANGE (order_date);
CREATE TABLE orders_y2023 PARTITION OF orders
FOR VALUES FROM ('2023-01-01') TO ('2024-01-01');
CREATE TABLE orders_y2024 PARTITION OF orders
FOR VALUES FROM ('2024-01-01') TO ('2025-01-01');
-- Add an index to each partition
CREATE INDEX idx_orders_y2023_customer_id ON orders_y2023 (customer_id);
CREATE INDEX idx_orders_y2024_customer_id ON orders_y2024 (customer_id); | 270 |
| 12 |  Matn yo'q... | 218 |
| 13 |  Matn yo'q... | 222 |
| 14 |  Matn yo'q... | 192 |
| 15 |  Beyond indexing, several query optimization techniques can significantly improve performance. | 169 |
| 16 | Unused Indexes: Identify and remove unused indexes to reduce write overhead. The pg_stat_all_indexes view provides information about index usage. | 167 |
| 17 | Index Bloat: As data is inserted, updated, and deleted, indexes can become fragmented and bloated, leading to performance degradation. Rebuild indexes periodically using the REINDEX command. | 161 |
| 18 | Statistics: PostgreSQL relies on statistics to estimate the cost of different query plans. Inaccurate statistics can lead to suboptimal plan choices. Regularly update statistics using the ANALYZE command. | 166 |
| 19 | Partial indexes index only a subset of the table's rows, based on a condition. This can reduce index size and improve performance when queries frequently filter on that condition. | 172 |
| 20 | Composite indexes index multiple columns. The order of columns in a composite index is important. The most frequently used column in WHERE clauses should come first. | 170 |
