updated docs

docs/ai/data-science/data-visualization/bi-tools.md

@@ -75,4 +75,7 @@ https://aws.amazon.com/blogs/big-data/add-comparative-and-cumulative-date-time-c
 https://www.talend.com/
 
 [GitHub - finos/perspective: A data visualization and analytics component, especially well-suited for large and/or streaming datasets.](https://github.com/finos/perspective)
+
 [ThoughtSpot | The AI-Powered Analytics Platform](https://www.thoughtspot.com/)
+
+[Reporting and embedded business intelligence software | Jaspersoft](https://www.jaspersoft.com/)

docs/databases/indexing/readme.md

@@ -4,3 +4,8 @@
 - [Database Index](database-index)
 - [Inverted Index](inverted-index)
 - [MySQL Indexing](mysql-indexing)
+
+## Others
+
+- [Postgres Indexes](databases/sql-databases/postgres/indexes.md)
+- [Mongodb Indexes](databases/nosql-databases/mongodb/indexes.md)

docs/databases/nosql-databases/mongodb/readme.md

@@ -2,7 +2,7 @@
 
 - [MongoDB Intro](databases/nosql-databases/mongodb/intro.md)
 - [Overview](overview)
-- [Indexes](indexes)
+- [Indexes](databases/nosql-databases/mongodb/indexes.md)
 - [Data Types](databases/nosql-databases/mongodb/data-types.md)
 - [Commands](databases/nosql-databases/mongodb/commands.md)
 - [pymongo](pymongo)

docs/databases/sql-databases/postgres/indexes.md

@@ -0,0 +1,72 @@
+# Indexes in Postgres
+
+[PostgreSQL: Documentation: 16: Chapter 11. Indexes](https://www.postgresql.org/docs/current/indexes.html)
+
+## Types
+
+### [B-tree indexes](https://www.postgresql.org/docs/current/btree-intro.html)
+
+B-tree indexes are binary trees that are used to sort data efficiently. They're the default if you use the INDEX command. Most of the time, a B-tree index suffices. As you scale, inconsistencies can be a larger problem, so use the [amcheck](https://www.postgresql.org/docs/11/amcheck.html) extension periodically.
+
+### Hash Indexes
+
+Hash indexes store a 32-bit hash code derived from the value of the indexed column. Hence, such indexes can only handle simple equality comparisons. The query planner will consider using a hash index whenever an indexed column is involved in a comparison using the equal operator
+
+[PostgreSQL: Documentation: 16: 11.2. Index Types](https://www.postgresql.org/docs/current/indexes-types.html#INDEXES-TYPES-HASH)
+
+### [BRIN indexes](https://www.postgresql.org/docs/11/brin-intro.html)
+
+A Block Range INdex (BRIN) can be used when your table is naturally already sorted by a column, and you need to sort by that column. For example, for a log table that was written sequentially, setting a BRIN index on the timestamp column lets the server know that the data is already sorted.
+
+BRIN works in terms of _block ranges_ (or “page ranges”). A block range is a group of pages that are physically adjacent in the table; for each block range, some summary info is stored by the index. For example, a table storing a store's sale orders might have a date column on which each order was placed, and most of the time the entries for earlier orders will appear earlier in the table as well; a table storing a ZIP code column might have all codes for a city grouped together naturally.
+
+[PostgreSQL: Documentation: 16: 71.1. Introduction](https://www.postgresql.org/docs/current/brin-intro.html)
+
+[Postgres BRIN Index — Large Data Performance With Minimal Storage | by Eresh Gorantla | Geek Culture | Medium](https://medium.com/geekculture/postgres-brin-index-large-data-performance-with-minimal-storage-4db6b9f64ca4)
+
+[Block Range Index - Wikipedia](https://en.wikipedia.org/wiki/Block_Range_Index)
+
+### [Bloom filter index](https://www.postgresql.org/docs/11/bloom.html)
+
+A bloom index is perfect for multi-column queries on big tables where you only need to test for equality. It uses a special mathematical structure called a bloom filter that's based on probability and uses significantly less space.
+
+### [GIN and GiST indexes](https://www.postgresql.org/docs/11/textsearch-indexes.html)
+
+Use a GIN or GiST index for efficient indexes based on composite values like text, arrays, and JSON.
+
+There are two kinds of indexes that can be used to speed up full text searches. Note that indexes are not mandatory for full text searching, but in cases where a column is searched on a regular basis, an index is usually desirable.
+
+```sql
+-- Creates a GiST (Generalized Search Tree)-based index. The column can be of tsvector or tsquery type.
+CREATE INDEX name ON table USING gist(column);
+
+-- Creates a GIN (Generalized Inverted Index)-based index. The column must be of tsvector type.
+CREATE INDEX name ON table USING gin(column);
+```
+
+A GiST index is _lossy_, meaning that the index may produce false matches, and it is necessary to check the actual table row to eliminate such false matches.
+
+GIN indexes are not lossy for standard queries, but their performance depends logarithmically on the number of unique words.
+
+Performance
+- GIN index lookups are about three times faster than GiST
+- GIN indexes take about three times longer to build than GiST
+- GIN indexes are moderately slower to update than GiST indexes, but about 10 times slower if fast-update support was disabled.
+- GIN indexes are two-to-three times larger than GiST indexes
+
+https://habr.com/en/company/postgrespro/blog/448746
+
+[PostgreSQL: Documentation: 9.1: GiST and GIN Index Types](https://www.postgresql.org/docs/9.1/textsearch-indexes.html)
+### SP-GiST
+
+SP-GiST indexes, like GiST indexes, offer an infrastructure that supports various kinds of searches. SP-GiST permits implementation of a wide range of different non-balanced disk-based data structures, such as quadtrees, k-d trees, and radix trees (tries).
+
+[PostgreSQL: Documentation: 16: 11.2. Index Types](https://www.postgresql.org/docs/current/indexes-types.html#INDEXES-TYPE-SPGIST)
+
+## Partial Indexes
+
+A _partial index_ is an index built over a subset of a table; the subset is defined by a conditional expression (called the _predicate_ of the partial index). The index contains entries only for those table rows that satisfy the predicate.
+
+[PostgreSQL: Documentation: 16: 11.8. Partial Indexes](https://www.postgresql.org/docs/current/indexes-partial.html)
+
+[PostgreSQL - Partial Index - GeeksforGeeks](https://www.geeksforgeeks.org/postgresql-partial-index/)

docs/databases/sql-databases/postgres/readme.md

@@ -1,5 +1,11 @@
 # Postgres
 
+- [Postgres Documentation](postgres/documentation)
+- [Table Partitioning](databases/sql-databases/postgres/table-partitioning.md)
+- [Postgres Indexes](databases/sql-databases/postgres/indexes.md)
+- [parameters-configuration-optimization](databases/sql-databases/postgres/parameters-configuration-optimization.md)
+- [others](databases/sql-databases/postgres/others.md)
+
 ## Introduction
 
 Is a relational database management system with an object-oriented approach, meaning that information can be represented as objects or classes in PostgreSQL schemas.
@@ -79,26 +85,6 @@ https://severalnines.com/database-blog/overview-json-capabilities-within-postgre
 
 Containment tests whether one document (a set or an array) is contained within another.
 
-## Indexes in Postgres
-
-#### [B-tree indexes](https://www.postgresql.org/docs/current/btree-intro.html)
-
-B-tree indexes are binary trees that are used to sort data efficiently. They're the default if you use theINDEXcommand. Most of the time, a B-tree index suffices. As you scale, inconsistencies can be a larger problem, so use the [amcheck](https://www.postgresql.org/docs/11/amcheck.html) extension periodically.
-
-#### [BRIN indexes](https://www.postgresql.org/docs/11/brin-intro.html)
-
-A Block Range INdex (BRIN) can be used when your table is naturally already sorted by a column, and you need to sort by that column. For example, for a log table that was written sequentially, setting a BRIN index on the timestamp column lets the server know that the data is already sorted.
-
-#### [Bloom filter index](https://www.postgresql.org/docs/11/bloom.html)
-
-A bloom index is perfect for multi-column queries on big tables where you only need to test for equality. It uses a special mathematical structure called a bloom filter that's based on probability and uses significantly less space.
-
-#### [GIN and GiST indexes](https://www.postgresql.org/docs/11/textsearch-indexes.html)
-
-Use a GIN or GiST index for efficient indexes based on composite values like text, arrays, and JSON.
-
-https://habr.com/en/company/postgrespro/blog/448746
-
 ## Streaming replication asynchronous and synchronous
 
 https://severalnines.com/database-blog/converting-asynchronous-synchronous-replication-postgresql
@@ -131,6 +117,10 @@ Youtube - [Breaking PostgreSQL at Scale - Christophe Pettus](https://www.youtube
 
 Tools - pgadmin
 
+## SAAS
+
+- [EDB: Open-Source, Enterprise Postgres Database Management](https://www.enterprisedb.com/)
+
 ## References
 
 - http://www.postgresqltutorial.com

docs/databases/sql-databases/readme.md

@@ -7,9 +7,5 @@
 - [AWS Redshift](aws-redshift/readme.md)
 - [MySQL](mysql/readme.md)
 - [Postgres](postgres/readme.md)
-  - [Postgres Documentation](postgres/documentation)
-  - [Table Partitioning](databases/sql-databases/postgres/table-partitioning.md)
-  - [parameters-configuration-optimization](databases/sql-databases/postgres/parameters-configuration-optimization.md)
-  - [others](databases/sql-databases/postgres/others.md)
 - [memsql](memsql/readme.md)
   - [Intro](memsql/intro)

docs/knowledge/quotes-proverbs/business-management.md

@@ -453,3 +453,5 @@ Working ON means taking a zoomed out approach and thinking: what systems could w
 If your business can't run without you - if you can't safely leave your business for a few weeks - you don't really have a business; you have a job.
 
 Tobacco lobby releasing a study on the health benefits of smoking
+
+![client-meme](../../media/Screenshot_20240106-223754.png)

docs/psychology/parenting.md

@@ -95,12 +95,9 @@ Schooling isn't just about education, it is also a form a childcare
 
 ## Links
 
-[Colin Powell: Kids need structure | TED - YouTube](https://www.youtube.com/watch?v=NhYnouvrG_8&ab_channel=TED)
-
-[Indian Parents , Their Pravachan And An Important Parenting Tip - YouTube](https://www.youtube.com/watch?v=Sjttt-F2pXE)
-
-[The Single Most Important Parenting Strategy - Repair | Becky Kennedy | TED - YouTube](https://www.youtube.com/watch?v=PHpPtdk9rco)
-
-[Toddlers Fears](https://www.whattoexpect.com/toddler-development/toddler-fears.aspx)
-
-[How to talk to babies](https://www.whattoexpect.com/first-year/milestones/how-to-talk-to-babies)
+- [Colin Powell: Kids need structure | TED - YouTube](https://www.youtube.com/watch?v=NhYnouvrG_8&ab_channel=TED)
+- [Indian Parents , Their Pravachan And An Important Parenting Tip - YouTube](https://www.youtube.com/watch?v=Sjttt-F2pXE)
+- [The Single Most Important Parenting Strategy - Repair | Becky Kennedy | TED - YouTube](https://www.youtube.com/watch?v=PHpPtdk9rco)
+- [Toddlers Fears](https://www.whattoexpect.com/toddler-development/toddler-fears.aspx)
+- [How to talk to babies](https://www.whattoexpect.com/first-year/milestones/how-to-talk-to-babies)
+- [7 Signs that Witnessing Unhealthy Anger in Childhood Hurts You Today - YouTube](https://www.youtube.com/watch?v=yyTfxRUu8gc)

docs/technologies/apache/airflow/intro.md

@@ -101,3 +101,10 @@ https://www.youtube.com/playlist?list=PLCi-q9vYo4x-PESoBcXN0tXCMgzh5c_Pj
 ## Debugging
 
 https://www.astronomer.io/blog/7-common-errors-to-check-when-debugging-airflow-dag
+
+## Others
+
+- Astronomer
+- Amazon Managed Apache Airflow [What Is Amazon Managed Workflows for Apache Airflow? - Amazon Managed Workflows for Apache Airflow](https://docs.aws.amazon.com/mwaa/latest/userguide/what-is-mwaa.html)
+
+![Amazon MWAA Architecture](../../../media/Pasted%20image%2020240109123958.png)