{
    "id": "fb163-table-capacity",
    "title": "Показать три товара и отдельно оценить хранение",
    "columns": [
        "Наблюдение",
        "Результат"
    ],
    "rows": [
        [
            "Всего синтетических SKU",
            120
        ],
        [
            "Остаток от 1 до 2 включительно",
            48
        ],
        [
            "Строк передано экрану",
            3
        ],
        [
            "На экране",
            "SKU-001 \/ 1; SKU-006 \/ 1; SKU-011 \/ 1"
        ],
        [
            "Таблица физического отчёта",
            "LAB_ITEMS"
        ],
        [
            "Индекс физического отчёта",
            "IX_FB163_QTY"
        ],
        [
            "Статистика страниц и узлов получена",
            true
        ],
        [
            "Все 120 строк выгружены в PHP",
            false
        ],
        [
            "Использование индекса запросом доказано",
            false
        ]
    ],
    "checks": {
        "fixture_count": true,
        "sql_filter_count": true,
        "bounded_screen_rows": true,
        "physical_statistics_present": true,
        "only_three_rows_transferred": true,
        "sql_link_closed": true,
        "owned_files_removed": true,
        "owned_objects_removed": true
    },
    "observations": {
        "physical_statistics": {
            "data_pages": 2,
            "index": "IX_FB163_QTY",
            "depth": 1,
            "leaf_pages": 1,
            "nodes": 120
        },
        "selected_items": [
            {
                "id": 1,
                "title": "SKU-001",
                "qty": 1
            },
            {
                "id": 6,
                "title": "SKU-006",
                "qty": 1
            },
            {
                "id": 11,
                "title": "SKU-011",
                "qty": 1
            }
        ],
        "total_fixture_rows": 120,
        "matching_rows": 48,
        "screen_sql": "SELECT ID,TITLE,QTY FROM LAB_ITEMS WHERE QTY BETWEEN 1 AND 2 ORDER BY QTY,ID ROWS 3",
        "statistics_request": {
            "action": "IBASE_STS_DATA_PAGES",
            "argument": "IBASE_STS_IDX_PAGES"
        },
        "report_excerpt": " \nDatabase \"[каталог учебного профиля]\\[учебный файл]\" \nGstat execution time Sat Nov  7 16:04:49 2026 \n \nDatabase header page information: \n\tFlags\t\t\t0 \n\tGeneration\t\t27 \n\tSystem Change Number\t0 \n\tPage size\t\t8192 \n\tODS version\t\t13.1 \n\tOldest transaction\t14 \n\tOldest active\t\t15 \n\tOldest snapshot\t\t15 \n\tNext transaction\t15 \n\tSequence number\t\t0 \n\tNext attachment ID\t3 \n\tImplementation\t\tHW=AMD\/Intel\/x64 little-endian OS=Windows CC=MSVC \n\tShadow count\t\t0 \n\tPage buffers\t\t0 \n\tNext header page\t0 \n\tDatabase dialect\t3 \n\tCreation date\t\tNov 7, 2026 13:04:48 \n\tAttributes\t\tforce write \n \n    Variable header data: \n\tDatabase GUID:\t{F80C2C7E-2579-4A01-BA5B-DAEDD5DA14E4} \n\tSweep interval:\t\t20000 \n\t*END* \n \n \nDatabase file sequence: \nFile [каталог учебного профиля]\\[учебный файл] is the only file \n \nAnalyzing database pages ... \nLAB_ITEMS (128) \n    Primary pointer page: 224, Index root page: 225 \n    Pointer pages: 1, data page slots: 2 \n    Data pages: 2, average fill: 32% \n    Primary pages: 2, secondary pages: 0, swept pages: 0 \n    Empty pages: 0, full pages: 0 \n    Fill distribution: \n\t 0 - 19% = 1 \n\t20 - 39% = 0 \n\t40 - 59% = 1 \n\t60 - 79% = 0 \n\t80 - 99% = 0 \n \n    Index IX_FB163_QTY (1) \n\tRoot page: 235, depth: 1, leaf buckets: 1, nodes: 120 \n\tAverage node length: 3.06, total dup: 115, max dup: 23 \n\tAverage key length: 2.03, compression ratio: 0.79 \n\tAverage prefix length: 1.55, average data length: 0.05 \n\tClustering factor: 10, ratio: 0.08 \n\tFill distribution: \n\t     0 - 19% = 1 \n\t    20 - 39% = 0 \n\t    40 - 59% = 0 \n\t    60 - 79% = 0 \n\t    80 - 99% = 0 \n \n    Index RDB$PRIMARY1 (0) \n\tRoot page: 230, depth: 1, leaf buckets: 1, nodes: 120 \n\tAverage node length: 4.02, total dup: 0, max dup: 0 \n\tAverage key length: 3.00, compression ratio: 0.82 \n\tAverage prefix length: 1.47, average data length: 1.01 \n\tClustering factor: 2, ratio: 0.02 \n\tFill distribution: \n\t     0 - 19% = 1 \n\t    20 - 39% = 0 \n\t    40 - 59% = 0 \n\t    60 - 79% = 0 \n\t    80 - 99% = 0 \n \nPHPMAN163_OWNER (129) \n    Primary pointer page: 231, Index root page: 232 \n    Pointer pages: 1, data page slots: 1 \n    Data pages: 1, average fill: 1% \n    Primary pages: 1, secondary pages: 0, swept pages: 0 \n    Empty pages: 0, full pages: 0 \n    Fill distribution: \n\t 0 - 19% = 1 \n\t20 - 39% = 0 \n\t40 - 59% = 0 \n\t60 - 79% = 0 \n\t80 - 99% = 0 \n \nGstat completion time Sat Nov  7 16:04:49 2026 \n \n",
        "gstat_is_not_a_transaction_snapshot": true,
        "index_presence_is_not_query_plan": true,
        "physical_numbers_not_guessed_before_run": true
    },
    "runtime": {
        "php": "8.2.35",
        "extension": "3.0.1",
        "server_version": "WI-V5.0.4.1812 Firebird 5.0",
        "implementation": "Firebird\/Windows\/AMD\/Intel\/x64",
        "transport": "embedded_local_services"
    },
    "owned_objects": [
        {
            "type": "DATABASE",
            "name": "fb163_capacity_b171541dea.fdb"
        }
    ],
    "removed_objects": [
        {
            "type": "DATABASE",
            "name": "fb163_capacity_b171541dea.fdb"
        }
    ]
}