ืžืขืœื“ื•ื ื’ ืคื•ืŸ TimescaleDB 1.7

ืืจื•ื™ืก DBMS ืžืขืœื“ื•ื ื’ TimescaleDB 1.7, ื“ื™ื–ื™ื™ื ื“ ืคึฟืึทืจ ืกื˜ืึธืจื™ื ื’ ืื•ืŸ ืคึผืจืึทืกืขืกื™ื ื’ ื“ืึทื˜ืŸ ืื™ืŸ ื“ื™ ืคืึธืจืขื ืคื•ืŸ ืึท ืฆื™ื™ื˜ ืกืขืจื™ืข (ืกืœื™ื™ืกื™ื– ืคื•ืŸ ืคึผืึทืจืึทืžืขื˜ืขืจ ื•ื•ืึทืœื•ืขืก ืื™ืŸ ืกืคึผืขืกื™ืคื™ืขื“ ื™ื ื˜ืขืจื•ื•ืึทืœื–; ื“ื™ ืจืขืงืึธืจื“ ืคืืจืžืขืŸ ืฆื™ื™ื˜ ืื•ืŸ ืึท ืกื›ื•ื ืคื•ืŸ ื•ื•ืึทืœื•ืขืก ืงืึธืจืึทืกืคึผืึทื ื“ื™ื ื’ ืฆื• ื“ืขื ืฆื™ื™ื˜). ื“ืขืจ ืคืึธืจืขื ืคื•ืŸ ืกื˜ืึธืจื™ื“ื–ืฉ ืื™ื– ืึธืคึผื˜ื™ืžืึทืœ ืคึฟืึทืจ ืึทืคึผืœืึทืงื™ื™ืฉืึทื ื– ืึทื–ืึท ื•ื•ื™ ืžืึธื ื™ื˜ืึธืจื™ื ื’ ืกื™ืกื˜ืขืžืขืŸ, ื˜ืจื™ื™ื“ื™ื ื’ ืคึผืœืึทื˜ืคืึธืจืžืก, ืกื™ืกื˜ืขืžืขืŸ ืคึฟืึทืจ ืงืึทืœืขืงื˜ื™ื ื’ ืžืขื˜ืจื™ืงืก ืื•ืŸ ืกืขื ืกืขืจ ืฉื˜ืึทื˜ืŸ. ืžื›ืฉื™ืจื™ื ืคึฟืึทืจ ื™ื ืึทื’ืจื™ื™ืฉืึทืŸ ืžื™ื˜ ื“ื™ ืคึผืจื•ื™ืขืงื˜ ื–ืขื ืขืŸ ืฆื•ื’ืขืฉื˜ืขืœื˜ ื’ืจืืคืื ื ะธ ืคึผืจืึธืžืขื˜ื”ืขื•ืก.

ื“ื™ TimescaleDB ืคึผืจื•ื™ืขืงื˜ ืื™ื– ื™ืžืคึผืœืึทืžืขื ืึทื“ ื•ื•ื™ ืึท ืคืึทืจืœืขื ื’ืขืจื•ื ื’ ืฆื• PostgreSQL ืื•ืŸ ืคื•ื ืื ื“ืขืจื’ืขื˜ื™ื™ืœื˜ ื“ื•ืจืš ืœื™ื™ืกืึทื ืกื˜ ืื•ื ื˜ืขืจ ืึทืคึผืึทื˜ืฉื™ 2.0. ืฉื˜ื™ืง ืคื•ืŸ ืงืึธื“ ืžื™ื˜ ืึทื•ื•ืึทื ืกื™ืจื˜ืข ืคึฟืขื™ึดืงื™ื™ื˜ืŸ ื‘ื ื™ืžืฆื ืื•ื ื˜ืขืจ ืึท ื‘ืึทื–ื•ื ื“ืขืจ ืคึผืจืึทืคึผืจื™ื™ืึทื˜ืขืจื™ ื“ืขืจืœื•ื™ื‘ืขื ื™ืฉ Timescale (TSL), ื•ื•ืึธืก ื˜ื•ื˜ ื ื™ืฉื˜ ืœืึธื–ืŸ ืขื ื“ืขืจื•ื ื’ืขืŸ, ืคึผืจืึธื•ื›ื™ื‘ืึทืฅ ื“ื™ ื ื•ืฆืŸ ืคื•ืŸ ืงืึธื“ ืื™ืŸ ื“ืจื™ื˜-ืคึผืึทืจื˜ื™ื™ ืคึผืจืึธื“ื•ืงื˜ืŸ ืื•ืŸ ื˜ื•ื˜ ื ื™ืฉื˜ ืœืึธื–ืŸ ืคืจื™ื™ ื ื•ืฆืŸ ืื™ืŸ ื•ื•ืึธืœืงืŸ ื“ืึทื˜ืึทื‘ื™ื™ืกื™ื– (ื“ืึทื˜ืึทื‘ื™ื™ืก-ื•ื•ื™-ืึท-ื“ื™ื ืกื˜).

ืฆื•ื•ื™ืฉืŸ ื“ื™ ืขื ื“ืขืจื•ื ื’ืขืŸ ืื™ืŸ TimescaleDB 1.7:

  • ืฆื•ื’ืขืœื™ื™ื’ื˜ ืฉื˜ื™ืฆืŸ ืคึฟืึทืจ ื™ื ื˜ืึทื’ืจื™ื™ืฉืึทืŸ ืžื™ื˜ DBMS ืคึผืึธืกื˜ื’ืจืขืกืงืœ 12. ืฉื˜ื™ืฆืŸ ืคึฟืึทืจ PostgreSQL 9.6.x ืื•ืŸ 10.x ืื™ื– ื“ื™ืคึผืจื™ืฉื™ื™ื™ื˜ื™ื“ (Timescale 2.0 ื•ื•ืขื˜ ื‘ืœื•ื™ื– ืฉื˜ื™ืฆืŸ PostgreSQL 11+).
  • ื“ื™ ื ืึทื˜ื•ืจ ืคื•ืŸ ืงื•ื•ื™ืจื™ื– ืžื™ื˜ ืงืึทื ื˜ื™ื ื™ื•ืึทืกืœื™ ืคืœื™ืกื ื“ื™ืง ื’ืขืžื™ื™ื ื–ืึทื ืคืึทื ื’ืงืฉืึทื ื– (ืึทื’ื’ืจืขื’ืึทื˜ื™ืึธืŸ ืคื•ืŸ ืงืึทื ื˜ื™ื ื™ื•ืึทืกืœื™ ื™ื ืงืึทืžื™ื ื’ ื“ืึทื˜ืŸ ืื™ืŸ ืคืึทืงื˜ื™ืฉ ืฆื™ื™ื˜) ืื™ื– ืคืืจืขื ื“ืขืจื˜. ืึทื–ืึท ืึธื ืคืจืขื’ ืคืึทืจื‘ื™ื ื“ืŸ ืื™ืฆื˜ ืžืึทื˜ื™ืจื™ืึทืœื™ื™ื–ื“ ืงื•ืงืŸ ืžื™ื˜ ื ื™ื™ ืื ื’ืขืงื•ืžืขืŸ ื“ืึทื˜ืŸ ื•ื•ืึธืก ื–ืขื ืขืŸ ื ืึธืš ื ื™ืฉื˜ ืžืึทื˜ื™ืจื™ืึทืœื™ื™ื–ื“ (ืคืจื™ืขืจ, ืึทื’ื’ืจืขื’ืึทื˜ื™ืึธืŸ ื‘ืœื•ื™ื– ื‘ืื“ืขืงื˜ ื“ืึทื˜ืŸ ื•ื•ืึธืก ืื™ื– ืฉื•ื™ืŸ ืžืึทื˜ื™ืจื™ืึทืœื™ื™ื–ื“). ื“ื™ ื ื™ื™ึทืข ื ืึทื˜ื•ืจ ืึทืคึผืœื™ื™ื– ืฆื• ื ื™ื™ ื‘ืืฉืืคืŸ ืงืขืกื™ื™ื“ืขืจื“ื™ืง ืึทื’ื’ืจืขื’ืึทื˜ื™ืึธื ืก; ืคึฟืึทืจ ื™ื’ื–ื™ืกื˜ื™ื ื’ ืงื•ืงืŸ, ื“ื™ "timescaledb.materialized_only=false" ืคึผืึทืจืึทืžืขื˜ืขืจ ื–ืึธืœ ื–ื™ื™ืŸ ื‘ืึทืฉื˜ื™ืžื˜ ื“ื•ืจืš "ALTER VIEW".
  • ืขื˜ืœืขื›ืข ืึทื•ื•ืึทื ืกื™ืจื˜ืข ื“ืึทื˜ืŸ ืœื™ืคืขืกื™ืงืœืข ืคืึทืจื•ื•ืึทืœื˜ื•ื ื’ ืžื›ืฉื™ืจื™ื ื–ืขื ืขืŸ ื˜ืจืึทื ืกืคืขืจื“ ืฆื• ื“ื™ ืงืึทืžื™ื•ื ื™ื˜ื™ ื•ื•ืขืจืกื™ืข ืคึฟื•ืŸ ื“ื™ ื’ืขืฉืขืคื˜ ืึทื“ื™ืฉืึทืŸ, ืึทืจื™ื™ึทื ื’ืขืจืขื›ื ื˜ ื“ื™ ืคื™ื™ื™ืงื™ื™ื˜ ืฆื• ืจื™ื’ืจื•ืคึผื™ืจืŸ ื“ืึทื˜ืŸ ืื•ืŸ ืคึผืจืึทืกืขืกื™ื ื’ ืคืึทืจืขืœื˜ืขืจื˜ ื“ืึทื˜ืŸ ื™ื•ื•ื™ืงืฉืึทืŸ ืคึผืึทืœืึทืกื™ื– (ืึทืœืึทื•ื™ื ื’ ืื™ืจ ืฆื• ืงืจืึธื ื‘ืœื•ื™ื– ืงืจืึทื ื˜ ื“ืึทื˜ืŸ ืื•ืŸ ืื•ื™ื˜ืึธืžืึทื˜ื™ืฉ ื•ื™ืกืžืขืงืŸ, ืฆื•ื ื•ื™ืคื’ื™ืกืŸ ืึธื“ืขืจ ืึทืจืงื™ื™ื•ื• ืคืึทืจืขืœื˜ืขืจื˜ ืจืขืงืึธืจื“ืก).

ืœืึธืžื™ืจ ืฆื•ืจื™ืงืจื•ืคืŸ ืึทื– ื“ื™ TimescaleDB DBMS ืึทืœืึทื•ื– ืื™ืจ ืฆื• ื ื•ืฆืŸ ืคื•ืœ-ืคืœืขื“ื–ืฉื“ SQL ืงื•ื•ื™ืจื™ื– ืฆื• ืึทื ืึทืœื™ื™ื– ืึทืงื™ื•ืžื™ืึทืœื™ื™ื˜ื™ื“ ื“ืึทื˜ืŸ, ืงืึทืžื‘ื™ื™ื ื™ื ื’ ื“ื™ ื™ื– ืคื•ืŸ ื ื•ืฆืŸ ื˜ืึธื›ื™ืง ืื™ืŸ ืจื™ืœื™ื™ืฉืึทื ืึทืœ ื“ื‘ืžืก ืžื™ื˜ ื“ื™ ืกืงื™ื™ืœื™ื ื’ ืื•ืŸ ืงื™ื™ืคึผืึทื‘ื™ืœืึทื˜ื™ื– ื˜ืึธื›ื™ืง ืื™ืŸ ืกืคึผืขืฉืึทืœื™ื™ื–ื“ NoSQL ืกื™ืกื˜ืขืžืขืŸ. ื“ื™ ืกื˜ืึธืจื™ื“ื–ืฉ ืกื˜ืจื•ืงื˜ื•ืจ ืื™ื– ืึธืคึผื˜ื™ืžื™ื–ืขื“ ืฆื• ืขื ืฉื•ืจ ื”ื•ื™ืš ื’ื™ื›ืงื™ื™ึทื˜ ืคื•ืŸ ื“ืึทื˜ืŸ ืึทื“ื™ืฉืึทืŸ. ืขืก ืฉื˜ื™ืฆื˜ ืคึผืขืงืœ ืึทื“ื™ืฉืึทืŸ ืคื•ืŸ ื“ืึทื˜ืŸ ืฉื˜ืขืœื˜, ื“ื™ ื ื•ืฆืŸ ืคื•ืŸ ื–ื™ืงืึธืจืŸ ื™ื ื“ืขืงืกื™ื–, ืจืขื˜ืจืึธืึทืงื˜ื™ื•ื•ืข ืœืึธื•ื“ื™ื ื’ ืคื•ืŸ ื”ื™ืกื˜ืืจื™ืฉืข ืกืœื™ื™ืกื™ื– ืื•ืŸ ื“ื™ ื ื•ืฆืŸ ืคื•ืŸ ื˜ืจืึทื ื–ืึทืงืฉืึทื ื–.

ื ืฉืœื™ืกืœ ืฉื˜ืจื™ืš ืคื•ืŸ TimescaleDB ืื™ื– ื“ื™ ืฉื˜ื™ืฆืŸ ืคึฟืึทืจ ืึธื˜ืึทืžืึทื˜ื™ืง ืคึผืึทืจื˜ื™ืฉืึทื ื™ื ื’ ืคื•ืŸ ื“ื™ ื“ืึทื˜ืŸ ืžืขื ื’ืข. ื“ื™ ืึทืจื™ื™ึทื ืฉืจื™ื™ึทื‘ ื“ืึทื˜ืŸ ื˜ื™ื™ึทืš ืื™ื– ืื•ื™ื˜ืึธืžืึทื˜ื™ืฉ ืคื•ื ืื ื“ืขืจื’ืขื˜ื™ื™ืœื˜ ืึทืจื™ื‘ืขืจ ืคึผืึทืจื˜ื™ืฉืึทื ืึทืœื™ ื˜ื™ืฉืŸ. ืกืขืงืฉืึทื ื– ื–ืขื ืขืŸ ื‘ืืฉืืคืŸ ื“ื™ืคึผืขื ื“ื™ื ื’ ืื•ื™ืฃ ืฆื™ื™ื˜ (ื™ืขื“ืขืจ ืึธืคึผื˜ื™ื™ืœื•ื ื’ ืกื˜ืึธืจื– ื“ืึทื˜ืŸ ืคึฟืึทืจ ืึท ื–ื™ื›ืขืจ ืฆื™ื™ื˜) ืึธื“ืขืจ ืื™ืŸ ื‘ืึทืฆื™ื•ื ื’ ืฆื• ืึท ืึทืจื‘ื™ื˜ืจืึทืจื™ืฉ ืฉืœื™ืกืœ (ืœืžืฉืœ, ืžื™ื˜ืœ ืฉื™ื™ึทืŸ, ืึธืจื˜, ืืื–"ื• ื•). ืฆื• ืึทืคึผื˜ืึทืžื™ื™ื– ืคืึธืจืฉื˜ืขืœื•ื ื’, ืคึผืึทืจื˜ื™ืฉืึทื ื“ ื˜ื™ืฉืŸ ืงืขื ืขืŸ ื–ื™ื™ืŸ ืคื•ื ืื ื“ืขืจื’ืขื˜ื™ื™ืœื˜ ืื•ื™ืฃ ืคืึทืจืฉื™ื“ืขื ืข ื“ื™ืกืงืก.

ืคึฟืึทืจ ืงื•ื•ื™ืจื™ื–, ืึท ืคึผืึทืจื˜ื™ืฉืึทื ื“ ื“ืึทื˜ืึทื‘ื™ื™ืก ืงื•ืงื˜ ื•ื•ื™ ืื™ื™ืŸ ื’ืจื•ื™ืก ื˜ื™ืฉ ื’ืขืจื•ืคืŸ ืึท ื›ื™ื™ืคึผืขืจื˜ืึทื‘ืœืข. ื ื”ื™ืคึผืขืจื˜ืึทื‘ืœืข ืื™ื– ืึท ื•ื•ื™ืจื˜ื•ืึทืœ ืคืึทืจื˜ืจืขื˜ื•ื ื’ ืคื•ืŸ ืคื™ืœืข ื™ื—ื™ื“ ื˜ื™ืฉืŸ ื•ื•ืึธืก ืึธื ืงืœื™ื™ึทื‘ืŸ ื™ื ืงืึทืžื™ื ื’ ื“ืึทื˜ืŸ. ื“ื™ ื”ื™ืคึผืขืจื˜ืึทื‘ืœืข ืื™ื– ื’ืขื ื™ืฆื˜ ื ื™ื˜ ื‘ืœื•ื™ื– ืคึฟืึทืจ ืคึฟืจืื’ืŸ ืื•ืŸ ืึทื“ื™ื ื’ ื“ืึทื˜ืŸ, ืึธื‘ืขืจ ืื•ื™ืš ืคึฟืึทืจ ืึทืคึผืขืจื™ื™ืฉืึทื ื– ืึทื–ืึท ื•ื•ื™ ืงืจื™ื™ื™ื˜ื™ื ื’ ื™ื ื“ืขืงืกื™ื– ืื•ืŸ ื˜ืฉืึทื ื’ื™ื ื’ ื“ื™ ืกื˜ืจื•ืงื˜ื•ืจ ("ALTER TABLE"), ื›ื™ื™ื“ื™ื ื’ ื“ื™ ื ื™ื“ืขืจื™ืง-ืžื“ืจื’ื” ืกืขื’ืžืขื ื˜ืขื“ ืกื˜ืจื•ืงื˜ื•ืจ ืคื•ืŸ ื“ื™ ื“ืึทื˜ืึทื‘ื™ื™ืก ืคื•ืŸ ื“ื™ ื“ืขื•ื•ืขืœืึธืคึผืขืจ. ืžื™ื˜ ืึท ื”ื™ืคึผืขืจื˜ืึทื‘ืœืข, ืื™ืจ ืงืขื ืขืŸ ื ื•ืฆืŸ ืงื™ื™ืŸ ื’ืขืžื™ื™ื ื–ืึทื ืคืึทื ื’ืงืฉืึทื ื–, ืกื•ื‘ืงื•ื•ืขืจื™ื–, ืฆื•ื ื•ื™ืคื’ื™ืกืŸ ืึทืคึผืขืจื™ื™ืฉืึทื ื– (JOIN) ืžื™ื˜ ืจืขื’ื•ืœืขืจ ื˜ื™ืฉืŸ ืื•ืŸ ืคึฟืขื ืฆื˜ืขืจ ืคืึทื ื’ืงืฉืึทื ื–.

ืžืงื•ืจ: opennet.ru

ืœื™ื™ื’ืŸ ืึท ื‘ืึทืžืขืจืงื•ื ื’