Building a CQL driver

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#CASSANDRAEU CASSANDRASUMMITEU Theo Hultberg | Chief Architect, Burt Building a CQL driver

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Cassandra Summit Europe 2013

Transcript of Building a CQL driver

Page 1: Building a CQL driver

#CASSANDRAEU CASSANDRASUMMITEU

Theo Hultberg | Chief Architect, Burt

Building a CQL driver

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#CASSANDRAEU @ICONARA

Theo HultbergChief Architect at

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I LIKE RUBYAND I LIKE CASSANDRA

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start_native_transport: true

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JUSTOPEN ASOCKET

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STARTUP

READY

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READY

{“CQL_VERSION”: “3.0.1”}

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OPTIONS

SUPPORTED

STARTUP

READY

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OPTIONS

{“CQL_VERSION”: [“3.0.0”, ...]}

STARTUP

READY

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OPTIONS

SUPPORTED

STARTUP

AUTHENTICATE

CREDENTIALS

READY

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QUERY

RESULT

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01 00 00 07 00 00 00 19 00 00 00 13 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 73 0004

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01 00 00 07 00 00 00 19 00 00 00 13 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 73 0004

81 00 00 08 00 00 00 bf 00 00 00 02 00 00 00 0100 00 00 03 00 0a 6d 79 6b 65 79 73 70 61 63 6500 05 75 73 65 72 73 00 09 75 73 65 72 5f 6e 616d 65 00 0d 00 05 65 6d 61 69 6c 00 0d 00 08 7061 73 73 77 6f 72 64 00 03 00 00 00 02 00 00 0004 70 68 69 6c 00 00 00 0d 70 68 69 6c 40 69 6e74 65 72 2e 6e 65 74 00 00 00 20 5e b6 3b bb e01e ee d0 93 cb 22 bb 8f 5a cd c3 00 00 00 03 7375 65 00 00 00 0d 73 75 65 40 69 6e 74 65 72 2e6e 65 74 00 00 00 20 32 7b 6f 07 43 58 11 23 9bc4 7e 15 44 35 32 73

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01 00 00 07 00 00 00 19 00 00 00 13 S E L E C T * F R O M U S E R S 0004

81 00 00 08 00 00 00 bf 00 00 00 02 00 00 00 0100 00 00 03 00 0a 6d 79 6b 65 79 73 70 61 63 6500 05 75 73 65 72 73 00 09 75 73 65 72 5f 6e 616d 65 00 0d 00 05 65 6d 61 69 6c 00 0d 00 08 7061 73 73 77 6f 72 64 00 03 00 00 00 02 00 00 0004 70 68 69 6c 00 00 00 0d 70 68 69 6c 40 69 6e74 65 72 2e 6e 65 74 00 00 00 20 5e b6 3b bb e01e ee d0 93 cb 22 bb 8f 5a cd c3 00 00 00 03 7375 65 00 00 00 0d 73 75 65 40 69 6e 74 65 72 2e6e 65 74 00 00 00 20 32 7b 6f 07 43 58 11 23 9bc4 7e 15 44 35 32 73

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01 00 00 07 00 00 00 19 00 00 00 13 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 73 0004

81 00 00 08 00 00 00 bf 00 00 00 02 00 00 00 0100 00 00 03 00 0a 6d 79 6b 65 79 73 70 61 63 6500 05 75 73 65 72 73 00 09 75 73 65 72 5f 6e 616d 65 00 0d 00 05 65 6d 61 69 6c 00 0d 00 08 7061 73 73 77 6f 72 64 00 03 00 00 00 02 00 00 0004 70 68 69 6c 00 00 00 0d 70 68 69 6c 40 69 6e74 65 72 2e 6e 65 74 00 00 00 20 5e b6 3b bb e01e ee d0 93 cb 22 bb 8f 5a cd c3 00 00 00 03 7375 65 00 00 00 0d 73 75 65 40 69 6e 74 65 72 2e6e 65 74 00 00 00 20 32 7b 6f 07 43 58 11 23 9bc4 7e 15 44 35 32 73

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01 00 00 07 00 00 00 19 00 00 00 13 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 73 0004

81 00 00 08 00 00 00 bf 00 00 00 02 00 00 00 0100 00 00 03 00 0a 6d 79 6b 65 79 73 70 61 63 6500 05 75 73 65 72 73 00 09 75 73 65 72 5f 6e 616d 65 00 0d 00 05 65 6d 61 69 6c 00 0d 00 08 7061 73 73 77 6f 72 64 00 03 00 00 00 02 00 00 0004 70 68 69 6c 00 00 00 0d 70 68 69 6c 40 69 6e74 65 72 2e 6e 65 74 00 00 00 20 5e b6 3b bb e01e ee d0 93 cb 22 bb 8f 5a cd c3 00 00 00 03 7375 65 00 00 00 0d 73 75 65 40 69 6e 74 65 72 2e6e 65 74 00 00 00 20 32 7b 6f 07 43 58 11 23 9bc4 7e 15 44 35 32 73

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01 00 00 07 00 00 00 19 00 00 00 13 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 73 0004

81 00 00 08 00 00 00 bf 00 00 00 02 00 00 00 0100 00 00 03 00 0a 6d 79 6b 65 79 73 70 61 63 6500 05 75 73 65 72 73 00 09 75 73 65 72 5f 6e 616d 65 00 0d 00 05 65 6d 61 69 6c 00 0d 00 08 7061 73 73 77 6f 72 64 00 03 00 00 00 02 00 00 0004 70 68 69 6c 00 00 00 0d 70 68 69 6c 40 69 6e74 65 72 2e 6e 65 74 00 00 00 20 5e b6 3b bb e01e ee d0 93 cb 22 bb 8f 5a cd c3 00 00 00 03 7375 65 00 00 00 0d 73 75 65 40 69 6e 74 65 72 2e6e 65 74 00 00 00 20 32 7b 6f 07 43 58 11 23 9bc4 7e 15 44 35 32 73

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01 00 00 07 00 00 00 19 00 00 00 13 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 73 0004

81 00 00 08 00 00 00 bf 00 00 00 02 00 00 00 0100 00 00 03 00 0a 6d 79 6b 65 79 73 70 61 63 6500 05 75 73 65 72 73 00 09 u s e r _ n a m e 00 0d 00 05 e m a i l 00 0d 00 08 p a s s w o r d 00 03 00 00 00 02 00 00 0004 70 68 69 6c 00 00 00 0d 70 68 69 6c 40 69 6e74 65 72 2e 6e 65 74 00 00 00 20 5e b6 3b bb e01e ee d0 93 cb 22 bb 8f 5a cd c3 00 00 00 03 7375 65 00 00 00 0d 73 75 65 40 69 6e 74 65 72 2e6e 65 74 00 00 00 20 32 7b 6f 07 43 58 11 23 9bc4 7e 15 44 35 32 73

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01 00 00 07 00 00 00 19 00 00 00 13 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 73 0004

81 00 00 08 00 00 00 bf 00 00 00 02 00 00 00 0100 00 00 03 00 0a 6d 79 6b 65 79 73 70 61 63 6500 05 75 73 65 72 73 00 09 75 73 65 72 5f 6e 616d 65 00 0d 00 05 65 6d 61 69 6c 00 0d 00 08 7061 73 73 77 6f 72 64 00 03 00 00 00 02 00 00 0004 70 68 69 6c 00 00 00 0d 70 68 69 6c 40 69 6e74 65 72 2e 6e 65 74 00 00 00 20 5e b6 3b bb e01e ee d0 93 cb 22 bb 8f 5a cd c3 00 00 00 03 7375 65 00 00 00 0d 73 75 65 40 69 6e 74 65 72 2e6e 65 74 00 00 00 20 32 7b 6f 07 43 58 11 23 9bc4 7e 15 44 35 32 73

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01 00 00 07 00 00 00 19 00 00 00 13 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 73 0004

81 00 00 08 00 00 00 bf 00 00 00 02 00 00 00 0100 00 00 03 00 0a 6d 79 6b 65 79 73 70 61 63 6500 05 75 73 65 72 73 00 09 75 73 65 72 5f 6e 616d 65 00 0d 00 05 65 6d 61 69 6c 00 0d 00 08 7061 73 73 77 6f 72 64 00 03 00 00 00 02 00 00 0004 p h i l 00 00 00 0e p h i l @ i n t e r . n e t 00 00 00 20 5e b6 3b bb e01e ee d0 93 cb 22 bb 8f 5a cd c3 00 00 00 03 s u e 00 00 00 0d s u e @ i n t e r . n e t 00 00 00 20 32 7b 6f 07 43 58 11 23 9bc4 7e 15 44 35 32 73

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01 00 00 07 00 00 00 19 00 00 00 13 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 73 0004

81 00 00 08 00 00 00 bf 00 00 00 02 00 00 00 0100 00 00 03 00 0a 6d 79 6b 65 79 73 70 61 63 6500 05 75 73 65 72 73 00 09 75 73 65 72 5f 6e 616d 65 00 0d 00 05 65 6d 61 69 6c 00 0d 00 08 7061 73 73 77 6f 72 64 00 03 00 00 00 02 00 00 0004 70 68 69 6c 00 00 00 0d 70 68 69 6c 40 69 6e74 65 72 2e 6e 65 74 00 00 00 20 5e b6 3b bb e01e ee d0 93 cb 22 bb 8f 5a cd c3 00 00 00 03 7375 65 00 00 00 0d 73 75 65 40 69 6e 74 65 72 2e6e 65 74 00 00 00 20 32 7b 6f 07 43 58 11 23 9bc4 7e 15 44 35 32 73

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QUERY

ERROR

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PREPARE

RESULT

EXECUTE

RESULT

EXECUTE

RESULT

EXECUTE

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01 00 03 09 00 00 00 2a 00 00 00 26 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 20 5748 45 52 45 20 75 73 65 72 5f 6e 61 6d 65 20 3d20 3f

81 00 03 08 00 00 00 3e 00 00 00 04 00 10 ca 487f 1e 7a 82 d2 3c 4e 8a f3 35 51 71 a5 2f 00 0000 01 00 00 00 01 00 0a 6d 79 6b 65 79 73 70 6163 65 00 05 75 73 65 72 73 00 09 75 73 65 72 5f6e 61 6d 65 00 0d

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01 00 03 09 00 00 00 2a 00 00 00 26 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 20 5748 45 52 45 20 75 73 65 72 5f 6e 61 6d 65 20 3d20 3f

81 00 03 08 00 00 00 3e 00 00 00 04 00 10 ca 487f 1e 7a 82 d2 3c 4e 8a f3 35 51 71 a5 2f 00 0000 01 00 00 00 01 00 0a 6d 79 6b 65 79 73 70 6163 65 00 05 75 73 65 72 73 00 09 75 73 65 72 5f6e 61 6d 65 00 0d

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01 00 03 09 00 00 00 2a 00 00 00 26 S E L E C T * F R O M u s e r W H E R E u s e r _ n a m e = ?

81 00 03 08 00 00 00 3e 00 00 00 04 00 10 ca 487f 1e 7a 82 d2 3c 4e 8a f3 35 51 71 a5 2f 00 0000 01 00 00 00 01 00 0a 6d 79 6b 65 79 73 70 6163 65 00 05 75 73 65 72 73 00 09 75 73 65 72 5f6e 61 6d 65 00 0d

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01 00 03 09 00 00 00 2a 00 00 00 26 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 20 5748 45 52 45 20 75 73 65 72 5f 6e 61 6d 65 20 3d20 3f

81 00 03 08 00 00 00 3e 00 00 00 04 00 10 ca 487f 1e 7a 82 d2 3c 4e 8a f3 35 51 71 a5 2f 00 0000 01 00 00 00 01 00 0a 6d 79 6b 65 79 73 70 6163 65 00 05 75 73 65 72 73 00 09 75 73 65 72 5f6e 61 6d 65 00 0d

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01 00 03 09 00 00 00 2a 00 00 00 26 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 20 5748 45 52 45 20 75 73 65 72 5f 6e 61 6d 65 20 3d20 3f

81 00 03 08 00 00 00 3e 00 00 00 04 00 10 ca 487f 1e 7a 82 d2 3c 4e 8a f3 35 51 71 a5 2f 00 0000 01 00 00 00 01 00 0a 6d 79 6b 65 79 73 70 6163 65 00 05 75 73 65 72 73 00 09 75 73 65 72 5f6e 61 6d 65 00 0d

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01 00 03 09 00 00 00 2a 00 00 00 26 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 20 5748 45 52 45 20 75 73 65 72 5f 6e 61 6d 65 20 3d20 3f

81 00 03 08 00 00 00 3e 00 00 00 04 00 10 ca 487f 1e 7a 82 d2 3c 4e 8a f3 35 51 71 a5 2f 00 0000 01 00 00 00 01 00 0a 6d 79 6b 65 79 73 70 6163 65 00 05 75 73 65 72 73 00 09 75 73 65 72 5f6e 61 6d 65 00 0d

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01 00 03 09 00 00 00 2a 00 00 00 26 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 20 5748 45 52 45 20 75 73 65 72 5f 6e 61 6d 65 20 3d20 3f

81 00 03 08 00 00 00 3e 00 00 00 04 00 10 ca 487f 1e 7a 82 d2 3c 4e 8a f3 35 51 71 a5 2f 00 0000 01 00 00 00 01 00 0a 6d 79 6b 65 79 73 70 6163 65 00 05 75 73 65 72 73 00 09 u s e r _ n a m e 00 0d

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01 00 03 09 00 00 00 2a 00 00 00 26 53 45 4c 4543 54 20 2a 20 46 52 4f 4d 20 75 73 65 72 20 5748 45 52 45 20 75 73 65 72 5f 6e 61 6d 65 20 3d20 3f

81 00 03 08 00 00 00 3e 00 00 00 04 00 10 ca 487f 1e 7a 82 d2 3c 4e 8a f3 35 51 71 a5 2f 00 0000 01 00 00 00 01 00 0a 6d 79 6b 65 79 73 70 6163 65 00 05 75 73 65 72 73 00 09 75 73 65 72 5f6e 61 6d 65 00 0d

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STREAM 0b

STREAM 0c

STREAM 0d

STREAM 0e

STREAM 07

STREAM 08

STREAM 09

STREAM 0a

STREAM 0f

STREAM 10

STREAM 06

STREAM 04

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STREAM ff EVENT

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THE HARD PARTIS NOT THE PROTOCOL

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THE DISTRIBUTED SYSTEM INCLUDES THE CLIENT

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×

×

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I GET BUGREPORTS

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Map: a [short] n indicating the size of the map, followed by n entries. Each entry is composed of two [short bytes] representing the key and the value of the entry map.

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RUBY PERFORMANCE(WAIT FOR IT)

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GO WRITEYOUR OWNDRIVERS

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github.com/iconara/cql-rb

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#CASSANDRAEU CASSANDRASUMMITEU

Theo Hultberg | Chief Architect, Burt

Building a CQL driver


Building and Testing Your Device Driver

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New Materials - CQL

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? CQL – a Common Query LanguageMike Taylor mike@indexdata.com CQL – a Common Query Language 1. What CQL is 2. Motivation 3. Examples and explanation 4.

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Cql mag summer 2016 lr

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Evaluation of the Stream Query Language CQL

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Appreciative Inquiry: Listening and Learning Cathy Ficker Terrill, CEO, CQL Appreciative Inquiry: Listening and Learning Cathy Ficker Terrill, CEO, CQL.

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N depend & cql

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Cooking with CQL or How to Express eCQMs using …...2020/04/23  · Cooking with CQL: or How to Express eCQMs using CQL, QDM, and FHIR® Webinar Supplemental Slides for the April

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CQL SPOTLIGHT ON 2019 · CQL SPOTLIGHT ON 2019 Posted 12/30/19 via Capstone e-Newsletter By Mary Kay Rizzolo | CQL President & CEO mkrizzolo@thecouncil.org CQL | The Council on Quality

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DataStaxODBCdriverforApache CassandraandDataStaxEnterprise … ODBC Driver... · DataStax ODBC driver for Apache Cassandra and DataStax Enterprise with CQL connector 32-bit=Installed

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Building Repository Networks with DRIVER

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CQL POM Survey Quick Guide

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Clinical Quality Language (CQL) Basics · CQL Basics: Date Arithmetic 27 CQL supports time-valued quantities with the name (singular or plural) of the precision as the unit. UCUM

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