add new section about jdbc configure connectionTimeout

[yokofly]

edit v1: remove Here are the refined sentences with improved grammar:

1. This repository, https://github.com/timeplus-io/timeplus-native-jdbc, has not been indexed in DeepWiki, so I need to query it using claude-code.
2. I spent $0.1701 on this question.(vertex-ai called), I will try use K2 next time

> jdbc how to configure connectionTimeout? is this same in mysql?

● I'll help you understand how to configure connection timeout in JDBC and
  compare it with MySQL. Let me search the codebase for existing timeout
  configurations.

● Search(pattern: "connectionTimeout|connectTimeout", output_mode:
        "content")
  ⎿  Found 23 lines (ctrl+r to expand)

● Search(pattern: "timeout", glob: "**/*.java", output_mode: "content")
  ⎿  Found 251 lines (ctrl+r to expand)

● Let me also check for documentation or settings keys related to timeouts:

● Read(timeplus-native-jdbc/src/main/java/com/timeplus/settings/SettingKey.
      java)
  ⎿  Read 986 lines (ctrl+r to expand)

● Based on the codebase analysis, I can answer your questions about
  connection timeout configuration in this Timeplus JDBC driver and how it
  compares to MySQL.

  Timeplus JDBC Connection Timeout Configuration

  In this Timeplus JDBC driver, you configure connectionTimeout using the
  connect_timeout parameter:

  URL Parameter:
  jdbc:timeplus://host:port/database?connect_timeout=30

  Key details from SettingKey.java:92-96:
  - Parameter name: connect_timeout
  - Type: Seconds (Duration in seconds)
  - Description: "Connection timeout if there are no replicas"
  - Default: Duration.ZERO (no timeout)

  Examples from the tests:
  // 10 second timeout
  "jdbc:timeplus://host:port?connect_timeout=10"

  // 50 second timeout  
  "jdbc:timeplus://host:port/system?connect_timeout=50"

  Programmatic configuration:
  TimeplusConfig config = TimeplusConfig.Builder.builder()
      .connectTimeout(Duration.ofSeconds(30))
      .build();

  Comparison with MySQL JDBC

  Similarities:
  - Both use URL parameters to configure connection timeout
  - Both accept timeout values in seconds
  - Both allow programmatic configuration

  Differences:
  - MySQL: Uses connectTimeout (milliseconds by default)
  - Timeplus: Uses connect_timeout (seconds)
  - MySQL: Default is usually 0 (infinite timeout)
  - Timeplus: Default is Duration.ZERO (no timeout)

  MySQL example:
  jdbc:mysql://host:port/database?connectTimeout=30000  // 30 seconds in 
  milliseconds

  Timeplus example:
  jdbc:timeplus://host:port/database?connect_timeout=30  // 30 seconds

  The main difference is the parameter name (connectTimeout vs
  connect_timeout) and the unit (milliseconds vs seconds).



Total cost:            $0.1701
Total duration (API):  34.6s
Total duration (wall): 2m 59.7s
Total code changes:    0 lines added, 0 lines removed
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