Context priority: CLI flags > session > project tdx.json > profile > global config

# Session context (scoped to current shell, expires after 24h)
tdx use database mydb
tdx profile use production   # Switch profile
tdx status                   # View current context and auth
tdx unset database           # Clear specific context
tdx use --clear              # Clear all session context

Session database eliminates the need for fully-qualified table names across commands:

tdx use database mydb
tdx tables                   # Lists mydb tables
tdx query "select * from users limit 10"  # Queries mydb.users

Profile Management

tdx profile list             # List all profiles
tdx profile create staging   # Create new profile (interactive)
tdx profile set database=dev # Set profile config
tdx --profile staging query "..." # One-off with different profile

Profiles (~/.config/tdx/tdx.json)

{
  "profiles": {
    "production": { "site": "us01", "database": "analytics" },
    "dev": { "site": "jp01", "database": "dev_db" }
  }
}

Project Config (tdx.json in project root)

{
  "site": "us01",
  "database": "customer_analytics",
  "parent_segment": "active_users"
}

Core Commands

Databases

tdx databases                    # List all
tdx databases "prod_*"           # Filter with pattern
tdx databases --json             # JSON output

Sites: us01 (default), jp01, eu01, ap02

Tables

When the target database is known, set context first:

tdx use database mydb            # Set context first
tdx tables                       # List tables in context database
tdx tables "user_*"              # Filter by pattern within context database

# Pattern syntax
tdx tables "mydb.*"              # All tables from mydb

Avoid tdx tables "*.table_name" — cross-database wildcard search is expensive. Set the database context instead.

Schema Inspection

Use tdx describe (or tdx desc) to check table schema:

tdx describe mydb.users              # Fully-qualified
tdx desc users                       # Omit database if session database is set
tdx describe mydb.users --json       # JSON output
tdx show mydb.users --limit 10       # Preview actual data (not schema)

Queries

Query output is truncated to 40 rows by default. Use --limit to return more:

tdx query "select * from users" --limit 100   # Return up to 100 rows

# With session database set, use unqualified table names
tdx use database mydb
tdx query "select * from users limit 10"

# Or use fully-qualified names without session context
tdx query "select * from mydb.users limit 10"

tdx query -f query.sql           # From file
tdx query -                      # From stdin
echo "select 1" | tdx query -
tdx sg sql "Segment Name" | tdx query -  # Pipe segment SQL

Output Formats

tdx databases --json             # JSON
tdx query "..." --jsonl          # JSON Lines (streaming)
tdx databases --tsv              # TSV
tdx databases --output out.json  # Save to file

Global Options

tdx <command> --help             # Command help
--profile <name>                 # Use specific profile
--json / --jsonl / --tsv         # Output format
--output <file>                  # Save to file
--dry-run                        # Preview without executing

TD-Specific Conventions

Table naming: database_name.table_name
Time column: Unix timestamp (seconds since epoch), not datetime
Time filtering: Use td_interval(time, '-1d/now') or td_time_range(time, 'start', 'end') for partition pruning
Timezone: UTC default; use td_interval(time, '-1d', 'JST') for Japan

select time, from_unixtime(time) as datetime from mydb.events limit 1

Project Folder Structure

tdx organizes resources into conventional folders:

my-project/
├── tdx.json                    # Project config (site, database, contexts)
├── parent_segments/            # Parent segment definitions
│   ├── customer-360.yml
│   └── demo-audience.yml
├── segments/                   # Child segments and journeys (per parent)
│   └── customer-360/
│       ├── tdx.json            # { "parent_segment": "Customer 360" }
│       ├── high-value.yml      # Segment
│       ├── onboarding.yml      # Journey (type: journey)
│       └── marketing/          # Folder organization
│           └── newsletter.yml
├── workflows/                  # Digdag workflow projects
│   └── daily-etl/
│       ├── tdx.json            # { "workflow_project": "daily-etl" }
│       └── main.dig
└── agents/                     # LLM agents (per project)
    └── my-llm-project/
        ├── tdx.json            # { "llm_project": "My LLM Project" }
        ├── support-agent/
        │   ├── agent.yml
        │   └── prompt.md
        └── knowledge_bases/
            └── faq.yml

Each tdx.json stores context for its directory—commands run from any subdirectory use the nearest config.

Resources

Documentation: https://tdx.treasuredata.com/
Related: sql-skills/time-filtering, segment, journey, agent

tdx-basic

tdx CLI - Basic Operations

Setup

Context Management